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Clifford Y Ko

Title(s)Professor, Surgery
SchoolMedicine
Address760 Westwood Plaza 72-131
Los Angeles CA 90024
Phone67572
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    Collapse Research 
    Collapse Research Activities and Funding
    Scaling and Spreading Electronic Capture of Patient-Reported Outcomes Using a National Surgical Quality Improvement Program
    AHRQ R18HS026189Jul 1, 2019 - Apr 30, 2022
    Role: Principal Investigator
    Plan for Extracting Intraoperative Anesthesia Data to the ACS NSQIP Database
    NIH/NLM G08LM009537Jul 15, 2007 - Jul 14, 2010
    Role: Principal Investigator
    Developing Quality Indicators to Improve the Care in Elderly Surgery Patients
    NIH/NIA R21AG028121Jun 1, 2006 - May 31, 2009
    Role: Principal Investigator

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Association of Weekend Effect With Recovery After Surgery. JAMA Surg. 2020 Aug 26. Liu JY, Merkow RP, Cohen ME, Bilimoria K, Ko CY, Sweeney JF, Sharma J. PMID: 32845300.
      View in: PubMed   Mentions:    Fields:    
    2. Perioperative Pain Management after Ambulatory Abdominal Surgery: An American College of Surgeons Systematic Review. J Am Coll Surg. 2020 Aug 14. Hu QL, Dworsky JQ, Beck AC, Gilbert EW, Pockaj BA, Varghese TK, Maggard-Gibbons M, Ko CY, Weigel RJ, Laronga C. PMID: 32805404.
      View in: PubMed   Mentions:    Fields:    
    3. Assessing the Quality of Rectal Cancer Pathology Reports in National Surgical Adjuvant Breast and Bowel Project Protocol R-04/NRG Oncology. Dis Colon Rectum. 2020 Aug; 63(8):1063-1070. Sho S, Yothers G, Colangelo LH, Ganz PA, O'Connell MJ, Beart RW, Hemmelgarn M, Chen FC, Ko CY, Russell MM. PMID: 32692071.
      View in: PubMed   Mentions:    Fields:    
    4. Association of Surgical Resident Wellness With Medical Errors and Patient Outcomes. Ann Surg. 2020 Apr 08. Hewitt DB, Ellis RJ, Chung JW, Cheung EO, Moskowitz JT, Huang R, Merkow RP, Yang AD, Hu YY, Cohen ME, Ko CY, Hoyt DB, Bilimoria KY. PMID: 32282379.
      View in: PubMed   Mentions:    Fields:    
    5. Hospital variation in use of prophylactic drains following hepatectomy. HPB (Oxford). 2020 Mar 12. Ellis RJ, Brajcich BC, Ko CY, Cohen ME, Bilimoria KY, Yopp AC, D'Angelica MI, Merkow RP. PMID: 32173175.
      View in: PubMed   Mentions:    Fields:    
    6. Post Hepatectomy Liver Failure Risk Calculator for Preoperative and Early Postoperative Period Following Major Hepatectomy. Ann Surg Oncol. 2020 Aug; 27(8):2868-2876. Liu JY, Ellis RJ, Hu QL, Cohen ME, Hoyt DB, Yang AD, Bentrem DJ, Ko CY, Pawlik TM, Bilimoria KY, Merkow RP. PMID: 32103417.
      View in: PubMed   Mentions:    Fields:    
    7. Variation in Hospital Utilization of Minimally Invasive Distal Pancreatectomy for Localized Pancreatic Neoplasms. J Gastrointest Surg. 2019 Nov 25. Ellis RJ, Zhang LM, Ko CY, Cohen ME, Bentrem DJ, Bilimoria KY, Yang AD, Talamonti MS, Merkow RP. PMID: 31768832.
      View in: PubMed   Mentions:    Fields:    
    8. Best Practices in Data Use for Achieving Successful Implementation of Enhanced Recovery Pathway. J Am Coll Surg. 2019 12; 229(6):626-632.e1. Hu QL, Liu JY, Hobson DB, Cohen ME, Hall BL, Wick EC, Ko CY. PMID: 31634564.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    9. Same-day discharge is not associated with increased readmissions or complications after thyroid operations. Surgery. 2020 01; 167(1):117-123. Hu QL, Livhits MJ, Ko CY, Yeh MW. PMID: 31582306.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    10. Injury-specific variables improve risk adjustment and hospital quality assessment in severe traumatic brain injury. J Trauma Acute Care Surg. 2019 08; 87(2):386-392. Dawes AJ, Sacks GD, Needleman J, Brook RH, Mittman BS, Ko CY, Cryer HG. PMID: 30958810.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. A Collaborative To Evaluate And Improve The Quality Of Surgical Care Delivered By The Military Health System. Health Aff (Millwood). 2019 08; 38(8):1313-1320. Learn PA, Mullen MJ, Saldinger PF, Kreishman P, Cordts PR, Ko CY, Knudson MM, Elster EA. PMID: 31381406.
      View in: PubMed   Mentions:    Fields:    
    12. Association of preoperative biliary drainage technique with postoperative outcomes among patients with resectable hepatobiliary malignancy. HPB (Oxford). 2020 02; 22(2):249-257. Hu QL, Liu JB, Ellis RJ, Liu JY, Yang AD, D'Angelica MI, Ko CY, Merkow RP. PMID: 31350104.
      View in: PubMed   Mentions:    Fields:    
    13. Adherence to Enhanced Recovery Protocols in NSQIP and Association With Colectomy Outcomes. Ann Surg. 2019 03; 269(3):486-493. Berian JR, Ban KA, Liu JB, Ko CY, Feldman LS, Thacker JK. PMID: 29064887.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    14. Risk factors for post-pancreaticoduodenectomy delayed gastric emptying in the absence of pancreatic fistula or intra-abdominal infection. J Surg Oncol. 2019 Jun; 119(7):925-931. Ellis RJ, Gupta AR, Hewitt DB, Merkow RP, Cohen ME, Ko CY, Bilimoria KY, Bentrem DJ, Yang AD. PMID: 30737792.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    15. When One Data Set Is Insufficient-Things to Consider When Linking Secondary Data. JAMA Surg. 2019 02 01; 154(2):186-187. Squitieri L, Russell TA, Ko CY. PMID: 30516795.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    16. Defining the Content for a Quality and Safety in Surgery Curriculum Using a Nominal Group Technique. J Surg Educ. 2019 May - Jun; 76(3):795-801. Kelz RR, Sellers MM, Merkow R, Aggarwal R, Ko CY. PMID: 30466885.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    17. Patients With Temporary Ostomies: Veterans Administration Hospitals Multi-institutional Retrospective Study. J Wound Ostomy Continence Nurs. 2018 Nov/Dec; 45(6):510-515. Mohammed Ilyas MI, Haggstrom DA, Maggard-Gibbons MA, Wendel CS, Rawl S, Schmidt CM, Ko CY, Krouse RS. PMID: 30395126.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    18. Trends in perioperative outcomes of hospitals performing major cancer surgery. J Surg Oncol. 2018 Sep; 118(4):694-703. Liu JB, Berian JR, Liu Y, Ko CY, Weber SM. PMID: 30129674.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    19. Effect of Diagnosis on Outcomes in the Setting of Enhanced Recovery Protocols. Dis Colon Rectum. 2018 Jul; 61(7):847-853. Ban KA, Berian JR, Liu JB, Ko CY, Feldman LS, Thacker JKM. PMID: 29878952.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    20. Creating Individual Surgeon Performance Assessments in a Statewide Hospital Surgical Quality Improvement Collaborative. J Am Coll Surg. 2018 09; 227(3):303-312.e3. Quinn CM, Bilimoria KY, Chung JW, Ko CY, Cohen ME, Stulberg JJ. PMID: 29940332.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    21. Surgical Technical Evidence Review of Hip Fracture Surgery Conducted for the AHRQ Safety Program for Improving Surgical Care and Recovery. Geriatr Orthop Surg Rehabil. 2018; 9:2151459318769215. Siletz A, Childers CP, Faltermeier C, Singer ES, Hu QL, Ko CY, Kates SL, Maggard-Gibbons M, Wick E. PMID: 29844947.
      View in: PubMed   Mentions:
    22. Databases for surgical health services research: National Trauma Data Bank and Trauma Quality Improvement Program. Surgery. 2018 11; 164(5):919-920. Liu JY, Hu QL, Ko CY. PMID: 29429579.
      View in: PubMed   Mentions:    Fields:    
    23. Databases for surgical health services research: National cancer database. Surgery. 2019 03; 165(3):499-500. Hu QL, Ellis RJ, Ko CY. PMID: 29455842.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    24. Surgical Technical Evidence Review for Elective Total Joint Replacement Conducted for the AHRQ Safety Program for Improving Surgical Care and Recovery. Geriatr Orthop Surg Rehabil. 2018; 9:2151458518754451. Childers CP, Siletz AE, Singer ES, Faltermeier C, Hu QL, Ko CY, Golladay GJ, Kates SL, Wick EC, Maggard-Gibbons M. PMID: 29468091.
      View in: PubMed   Mentions:
    25. Databases for surgical health services research: American College of Surgeons National Surgical Quality Improvement Program. Surgery. 2018 08; 164(2):173-175. Ellis RJ, Liu JY, Ko CY. PMID: 29402449.
      View in: PubMed   Mentions: 1     Fields:    
    26. Defining the Intrinsic Cardiac Risks of Operations to Improve Preoperative Cardiac Risk Assessments. Anesthesiology. 2018 02; 128(2):283-292. Liu JB, Liu Y, Cohen ME, Ko CY, Sweitzer BJ. PMID: 29337744.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    27. Evaluation of the Present-on-Admission Indicator among Hospitalized Fee-for-Service Medicare Patients with a Pressure Ulcer Diagnosis: Coding Patterns and Impact on Hospital-Acquired Pressure Ulcer Rates. Health Serv Res. 2018 08; 53 Suppl 1:2970-2987. Squitieri L, Waxman DA, Mangione CM, Saliba D, Ko CY, Needleman J, Ganz DA. PMID: 29552746.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    28. Expanding the scope of quality measurement in surgery to include nonoperative care: Results from the American College of Surgeons National Surgical Quality Improvement Program emergency general surgery pilot. J Trauma Acute Care Surg. 2017 11; 83(5):837-845. Wandling MW, Ko CY, Bankey PE, Cribari C, Cryer HG, Diaz JJ, Duane TM, Hameed SM, Hutter MM, Metzler MH, Regner JL, Reilly PM, Reines HD, Sperry JL, Staudenmayer KL, Utter GH, Crandall ML, Bilimoria KY, Nathens AB. PMID: 29068873.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    29. Outcomes of Concurrent Operations: Results From the American College of Surgeons' National Surgical Quality Improvement Program. Ann Surg. 2017 09; 266(3):411-420. Liu JB, Berian JR, Ban KA, Liu Y, Cohen ME, Angelos P, Matthews JB, Hoyt DB, Hall BL, Ko CY. PMID: 28650359.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    30. Response to "Does Participation in the ACS-NSQIP Improve Outcomes?" Ann Surg. 2017 08; 266(2):e33-e34. Cohen ME, Hall BL, Liu Y, Ko CY. PMID: 28692562.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    31. Consistency of pressure injury documentation across interfacility transfers. BMJ Qual Saf. 2018 03; 27(3):182-189. Squitieri L, Ganz DA, Mangione CM, Needleman J, Romano PS, Saliba D, Ko CY, Waxman DA. PMID: 28754811.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    32. The Randomized Registry Trial: Two Birds, One Stone. Ann Surg. 2017 06; 265(6):1064-1065. Liu JB, D'Angelica MI, Ko CY. PMID: 28121676.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    33. On-demand Reporting of Risk-adjusted and Smoothed Rates for Quality Profiling in ACS NSQIP. Ann Surg. 2016 Dec; 264(6):966-972. Cohen ME, Liu Y, Huffman KM, Ko CY, Hall BL. PMID: 27115903.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    34. Impact of a Risk Calculator on Risk Perception and Surgical Decision Making: A Randomized Trial. Ann Surg. 2016 Dec; 264(6):889-895. Sacks GD, Dawes AJ, Ettner SL, Brook RH, Fox CR, Russell MM, Ko CY, Maggard-Gibbons M. PMID: 27192347.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    35. Surgeon Perception of Risk and Benefit in the Decision to Operate. Ann Surg. 2016 Dec; 264(6):896-903. Sacks GD, Dawes AJ, Ettner SL, Brook RH, Fox CR, Maggard-Gibbons M, Ko CY, Russell MM. PMID: 27192348.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    36. Nationwide Assessment of Trends in Choledocholithiasis Management in the United States From 1998 to 2013. JAMA Surg. 2016 12 01; 151(12):1125-1130. Wandling MW, Hungness ES, Pavey ES, Stulberg JJ, Schwab B, Yang AD, Shapiro MB, Bilimoria KY, Ko CY, Nathens AB. PMID: 27556900.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    37. Effect of Flexible Duty Hour Policies on Length of Stay for Complex Intra-Abdominal Operations: A Flexibility in Duty Hour Requirements for Surgical Trainees (FIRST) Trial Analysis. J Am Coll Surg. 2017 Feb; 224(2):143-148.e1. Stulberg JJ, Pavey ES, Cohen ME, Ko CY, Hoyt DB, Bilimoria KY. PMID: 27884801.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    38. Disparities in Rectal Cancer: Moving from Descriptions to Solutions. Ann Surg Oncol. 2017 Feb; 24(2):299-301. Liu JB, Ko CY. PMID: 27743226.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    39. Evaluation of the ProPublica Surgeon Scorecard "Adjusted Complication Rate" Measure Specifications. Ann Surg. 2016 10; 264(4):566-74. Ban KA, Cohen ME, Ko CY, Friedberg MW, Stulberg JJ, Zhou L, Hall BL, Hoyt DB, Bilimoria KY. PMID: 27433895.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    40. The Impact of Different Surgical Techniques on Outcomes in Laparoscopic Sleeve Gastrectomies: The First Report from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP). Ann Surg. 2016 09; 264(3):464-73. Berger ER, Clements RH, Morton JM, Huffman KM, Wolfe BM, Nguyen NT, Ko CY, Hutter MM. PMID: 27433904.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    41. Development of the Flexibility in Duty Hour Requirements for Surgical Trainees (FIRST) Trial Protocol: A National Cluster-Randomized Trial of Resident Duty Hour Policies. JAMA Surg. 2016 Mar; 151(3):273-81. Bilimoria KY, Chung JW, Hedges LV, Dahlke AR, Love R, Cohen ME, Tarpley J, Mellinger J, Mahvi DM, Kelz RR, Ko CY, Hoyt DB, Lewis FH. PMID: 26720622.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    42. Surgical Professionalism: The Inspiring Surgeon of the Modern Era. Ann Surg. 2016 Mar; 263(3):428-9. Berian JR, Ko CY, Angelos P. PMID: 26445477.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    43. Hospital-level Variation in Secondary Complications After Surgery. Ann Surg. 2016 Mar; 263(3):493-501. Wakeam E, Hyder JA, Lipsitz SR, Cohen ME, Orgill DP, Zinner MJ, Ko CY, Hall BL, Finlayson SR. PMID: 25876007.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    44. Does Performance Vary Within the Same Hospital When Separately Examining Different Patient Subgroups? J Am Coll Surg. 2016 05; 222(5):790-797.e1. Berian JR, Paruch JL, Cohen ME, Merkow RP, Dahlke AR, Ko CY, Bilimoria KY. PMID: 27016904.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    45. National Cluster-Randomized Trial of Duty-Hour Flexibility in Surgical Training. N Engl J Med. 2016 Feb 25; 374(8):713-27. Bilimoria KY, Chung JW, Hedges LV, Dahlke AR, Love R, Cohen ME, Hoyt DB, Yang AD, Tarpley JL, Mellinger JD, Mahvi DM, Kelz RR, Ko CY, Odell DD, Stulberg JJ, Lewis FR. PMID: 26836220.
      View in: PubMed   Mentions: 48     Fields:    Translation:Humans
    46. Variation in Hospital Use of Postacute Care After Surgery and the Association With Care Quality. Med Care. 2016 Feb; 54(2):172-9. Sacks GD, Lawson EH, Dawes AJ, Weiss RE, Russell MM, Brook RH, Zingmond DS, Ko CY. PMID: 26595222.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    47. Improved Surgical Outcomes for ACS NSQIP Hospitals Over Time: Evaluation of Hospital Cohorts With up to 8 Years of Participation. Ann Surg. 2016 Feb; 263(2):267-73. Cohen ME, Liu Y, Ko CY, Hall BL. PMID: 25723845.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    48. Optimal Perioperative Management of the Geriatric Patient: A Best Practices Guideline from the American College of Surgeons NSQIP and the American Geriatrics Society. J Am Coll Surg. 2016 05; 222(5):930-47. Mohanty S, Rosenthal RA, Russell MM, Neuman MD, Ko CY, Esnaola NF. PMID: 27049783.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    49. Using Both Clinical Registry and Administrative Claims Data to Measure Risk-adjusted Surgical Outcomes. Ann Surg. 2016 Jan; 263(1):50-7. Lawson EH, Louie R, Zingmond DS, Sacks GD, Brook RH, Hall BL, Ko CY. PMID: 25405553.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    50. Comparison of National Operative Mortality in Gastroenterological Surgery Using Web-based Prospective Data Entry Systems. Medicine (Baltimore). 2015 Dec; 94(49):e2194. Anazawa T, Paruch JL, Miyata H, Gotoh M, Ko CY, Cohen ME, Hirahara N, Zhou L, Konno H, Wakabayashi G, Sugihara K, Mori M. PMID: 26656350.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    51. Patterns and Predictors of Chemotherapy Use for Resected Non-Small Cell Lung Cancer. Ann Thorac Surg. 2016 Feb; 101(2):533-40. Rajaram R, Paruch JL, Mohanty S, Holl JL, Bilimoria KY, Ko CY, Winchester DP, Patel JD, DeCamp MM. PMID: 26507427.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    52. Compliance With Evidence-Based Guidelines and Interhospital Variation in Mortality for Patients With Severe Traumatic Brain Injury. JAMA Surg. 2015 Oct; 150(10):965-72. Dawes AJ, Sacks GD, Cryer HG, Gruen JP, Preston C, Gorospe D, Cohen M, McArthur DL, Russell MM, Maggard-Gibbons M, Ko CY. PMID: 26200744.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    53. Wireless Technology to Track Surgical Patients after Discharge: A Pilot Study. Am Surg. 2015 Oct; 81(10):1061-6. Dawes AJ, Reardon S, Chen VL, Kaiser W, Russell MM, Ko CY, Lin AY. PMID: 26463309.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    54. Profiling Individual Surgeon Performance Using Information from a High-Quality Clinical Registry: Opportunities and Limitations. J Am Coll Surg. 2015 Nov; 221(5):901-13. Hall BL, Huffman KM, Hamilton BH, Paruch JL, Zhou L, Richards KE, Cohen ME, Ko CY. PMID: 26363711.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    55. Relationship Between Hospital Performance on a Patient Satisfaction Survey and Surgical Quality. JAMA Surg. 2015 Sep; 150(9):858-64. Sacks GD, Lawson EH, Dawes AJ, Russell MM, Maggard-Gibbons M, Zingmond DS, Ko CY. PMID: 26108091.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    56. Estimating Adverse Events After Gastrostomy Tube Placement. Acad Pediatr. 2016 Mar; 16(2):129-35. Stey AM, Kenney BD, Cohen ME, Moss RL, Hall BL, Berman L, Kraemer K, Ko CY, Vinocur CD. PMID: 26306663.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    57. Association of the 2011 ACGME Resident Duty Hour Reform with Postoperative Patient Outcomes in Surgical Specialties. J Am Coll Surg. 2015 Sep; 221(3):748-57. Rajaram R, Chung JW, Cohen ME, Dahlke AR, Yang AD, Meeks JJ, Ko CY, Tarpley JL, Hoyt DB, Bilimoria KY. PMID: 26228013.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    58. Reply to Letter: "Ability to Prevent Death as a Sequelae of Morbidity May Be an Additional Indicator of Hospital Quality". Ann Surg. 2015 Jun; 261(6):e158-9. Merkow RP, Hall BL, Ko CY. PMID: 24263330.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    59. A Comprehensive Evaluation of Statistical Reliability in ACS NSQIP Profiling Models. Ann Surg. 2015 Jun; 261(6):1108-13. Huffman KM, Cohen ME, Ko CY, Hall BL. PMID: 25211276.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    60. Teamwork, communication and safety climate: a systematic review of interventions to improve surgical culture. BMJ Qual Saf. 2015 Jul; 24(7):458-67. Sacks GD, Shannon EM, Dawes AJ, Rollo JC, Nguyen DK, Russell MM, Ko CY, Maggard-Gibbons MA. PMID: 26002946.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    61. National evaluation of hospital readmission after pulmonary resection. J Thorac Cardiovasc Surg. 2015 Dec; 150(6):1508-14.e2. Rajaram R, Ju MH, Bilimoria KY, Ko CY, DeCamp MM. PMID: 26092506.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    62. Using Merged Clinical and Claims Registry Data to Identify High Utilizers of Surgical Inpatient Care 1 Year after Colectomy. J Am Coll Surg. 2015 Aug; 221(2):441-51.e1. Stey AM, Russell MM, Zingmond DS, Gibbons MM, Hall BL, Needleman J, Lawson EH, Liu N, Ko CY. PMID: 26141469.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    63. Patterns of care among patients undergoing hepatic resection: a query of the National Surgical Quality Improvement Program-targeted hepatectomy database. J Surg Res. 2015 Jun 15; 196(2):221-8. Spolverato G, Ejaz A, Kim Y, Hall BL, Bilimoria K, Cohen M, Ko C, Pitt H, Pawlik TM. PMID: 25881789.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    64. A risk calculator predicting postoperative adverse events in neonates undergoing major abdominal or thoracic surgery. J Pediatr Surg. 2015 Jun; 50(6):987-91. Stey AM, Kenney BD, Moss RL, Hall BL, Berman L, Cohen ME, Kraemer K, Ko CY, Vinocur CD. PMID: 25824439.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    65. Which Patients Require More Care after Hospital Discharge? An Analysis of Post-Acute Care Use among Elderly Patients Undergoing Elective Surgery. J Am Coll Surg. 2015 Jun; 220(6):1113-1121.e2. Sacks GD, Lawson EH, Dawes AJ, Gibbons MM, Zingmond DS, Ko CY. PMID: 25872686.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    66. Intracranial pressure monitoring and inpatient mortality in severe traumatic brain injury: A propensity score-matched analysis. J Trauma Acute Care Surg. 2015 Mar; 78(3):492-501; discussion 501-2. Dawes AJ, Sacks GD, Cryer HG, Gruen JP, Preston C, Gorospe D, Cohen M, McArthur DL, Russell MM, Maggard-Gibbons M, Ko CY. PMID: 25710418.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    67. Extending the value of the National Surgical Quality Improvement Program claims dataset to study long-term outcomes: Rate of repeat ventral hernia repair. Surgery. 2015 Jun; 157(6):1157-65. Stey AM, Russell MM, Sugar CA, Hall BL, Zingmond DS, Lawson EH, Ko CY. PMID: 25731782.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    68. Underlying reasons associated with hospital readmission following surgery in the United States. JAMA. 2015 Feb 03; 313(5):483-95. Merkow RP, Ju MH, Chung JW, Hall BL, Cohen ME, Williams MV, Tsai TC, Ko CY, Bilimoria KY. PMID: 25647204.
      View in: PubMed   Mentions: 98     Fields:    Translation:Humans
    69. Clinical registries and quality measurement in surgery: a systematic review. Surgery. 2015 Feb; 157(2):381-95. Stey AM, Russell MM, Ko CY, Sacks GD, Dawes AJ, Gibbons MM. PMID: 25616951.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    70. Comparison between clinical registry and medicare claims data on the classification of hospital quality of surgical care. Ann Surg. 2015 Feb; 261(2):290-6. Lawson EH, Zingmond DS, Hall BL, Louie R, Brook RH, Ko CY. PMID: 25569029.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    71. Comparative effectiveness of sphincter-sparing surgery versus abdominoperineal resection in rectal cancer: patient-reported outcomes in National Surgical Adjuvant Breast and Bowel Project randomized trial R-04. Ann Surg. 2015 Jan; 261(1):144-8. Russell MM, Ganz PA, Lopa S, Yothers G, Ko CY, Arora A, Atkins JN, Bahary N, Soori GS, Robertson JM, Eakle J, Marchello BT, Wozniak TF, Beart RW, Wolmark N. PMID: 24670844.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    72. A comparison of 2 surgical site infection monitoring systems. JAMA Surg. 2015 Jan; 150(1):51-7. Ju MH, Ko CY, Hall BL, Bosk CL, Bilimoria KY, Wick EC. PMID: 25426765.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    73. Association of the 2011 ACGME resident duty hour reform with general surgery patient outcomes and with resident examination performance. JAMA. 2014 Dec 10; 312(22):2374-84. Rajaram R, Chung JW, Jones AT, Cohen ME, Dahlke AR, Ko CY, Tarpley JL, Lewis FR, Hoyt DB, Bilimoria KY. PMID: 25490328.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    74. Is there hospital variation in long-term incisional hernia repair after abdominal surgery? J Am Coll Surg. 2015 Mar; 220(3):313-322.e2. Stey AM, Russell MM, Hall BL, Lin A, Gibbons MM, Lawson EH, Zingmond DS, Ko CY. PMID: 25542281.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    75. Hospital costs by cost center of inpatient hospitalization for medicare patients undergoing major abdominal surgery. J Am Coll Surg. 2015 Feb; 220(2):207-17.e11. Stey AM, Brook RH, Needleman J, Hall BL, Zingmond DS, Lawson EH, Ko CY. PMID: 25529900.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    76. Measuring risk-adjusted value using Medicare and ACS-NSQIP: is high-quality, low-cost surgical care achievable everywhere? Ann Surg. 2014 Oct; 260(4):668-77; discussion 677-9. Lawson EH, Zingmond DS, Stey AM, Hall BL, Ko CY. PMID: 25203884.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    77. The impact of continuous Medicaid enrollment on diagnosis, treatment, and survival in six surgical cancers. Health Serv Res. 2014 Dec; 49(6):1787-811. Dawes AJ, Louie R, Nguyen DK, Maggard-Gibbons M, Parikh P, Ettner SL, Ko CY, Zingmond DS. PMID: 25256223.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    78. Effect of post-discharge venous thromboembolism on hospital quality comparisons following hip and knee arthroplasty. J Bone Joint Surg Am. 2014 Sep 03; 96(17):1476-84. Kester BS, Merkow RP, Ju MH, Peabody TD, Bentrem DJ, Ko CY, Bilimoria KY. PMID: 25187587.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    79. Association between hospital imaging use and venous thromboembolism events rates based on clinical data. Ann Surg. 2014 Sep; 260(3):558-64; discussion 564-6. Ju MH, Chung JW, Kinnier CV, Bentrem DJ, Mahvi DM, Ko CY, Bilimoria KY. PMID: 25115432.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    80. Evaluation of hospital readmissions in surgical patients: do administrative data tell the real story? JAMA Surg. 2014 Aug; 149(8):759-64. Sacks GD, Dawes AJ, Russell MM, Lin AY, Maggard-Gibbons M, Winograd D, Chung HR, Tomlinson J, Tillou A, Shew SB, Hiyama DT, Cryer HG, Brunicardi FC, Hiatt JR, Ko C. PMID: 24920156.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    81. Postoperative complications reduce adjuvant chemotherapy use in resectable pancreatic cancer. Ann Surg. 2014 Aug; 260(2):372-7. Merkow RP, Bilimoria KY, Tomlinson JS, Paruch JL, Fleming JB, Talamonti MS, Ko CY, Bentrem DJ. PMID: 24374509.
      View in: PubMed   Mentions: 42     Fields:    Translation:Humans
    82. Effect of wound classification on risk adjustment in American College of Surgeons NSQIP. J Am Coll Surg. 2014 Sep; 219(3):371-81.e5. Ju MH, Cohen ME, Bilimoria KY, Latus MS, Scholl LM, Schwab BJ, Byrd CM, Ko CY, Dellinger EP, Hall BL. PMID: 25053222.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    83. Expanding the research experience. Surgery. 2014 May; 155(5):839-40. Ko CY. PMID: 24787110.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    84. Preventable readmissions to surgical services: lessons learned and targets for improvement. J Am Coll Surg. 2014 Sep; 219(3):382-9. Dawes AJ, Sacks GD, Russell MM, Lin AY, Maggard-Gibbons M, Winograd D, Chung HR, Tillou A, Hiatt JR, Ko C. PMID: 24891209.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    85. Are procedures codes in claims data a reliable indicator of intraoperative splenic injury compared with clinical registry data? J Am Coll Surg. 2014 Aug; 219(2):237-44.e1. Stey AM, Ko CY, Hall BL, Louie R, Lawson EH, Gibbons MM, Zingmond DS, Russell MM. PMID: 24891210.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    86. Impact of hepatectomy surgical complexity on outcomes and hospital quality rankings. Ann Surg Oncol. 2014 Jun; 21(6):1773-80. Paruch JL, Merkow RP, Bentrem DJ, Ko CY, Posner MC, Cohen ME, Bilimoria KY, Weber SM. PMID: 24558060.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    87. The importance of extreme weight percentile in postoperative morbidity in children. J Am Coll Surg. 2014 May; 218(5):988-96. Stey AM, Moss RL, Kraemer K, Cohen ME, Ko CY, Lee Hall B. PMID: 24680569.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    88. Early discharge and readmission after colorectal resection. J Surg Res. 2014 Aug; 190(2):579-86. Hoffman RL, Bartlett EK, Ko C, Mahmoud N, Karakousis GC, Kelz RR. PMID: 24661387.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    89. Identification of modifiable factors for reducing readmission after colectomy: a national analysis. Surgery. 2014 May; 155(5):754-66. Lawson EH, Hall BL, Louie R, Zingmond DS, Ko CY. PMID: 24787101.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    90. National assessment of margin status as a quality indicator after pancreatic cancer surgery. Ann Surg Oncol. 2014 Apr; 21(4):1067-74. Merkow RP, Bilimoria KY, Bentrem DJ, Pitt HA, Winchester DP, Posner MC, Ko CY, Pawlik TM. PMID: 24337612.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    91. Effect of postoperative complications on adjuvant chemotherapy use for stage III colon cancer. Ann Surg. 2013 Dec; 258(6):847-53. Merkow RP, Bentrem DJ, Mulcahy MF, Chung JW, Abbott DE, Kmiecik TE, Stewart AK, Winchester DP, Ko CY, Bilimoria KY. PMID: 24169157.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    92. Reliability of evaluating hospital quality by colorectal surgical site infection type. Ann Surg. 2013 Dec; 258(6):994-1000. Lawson EH, Ko CY, Adams JL, Chow WB, Hall BL. PMID: 23657082.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    93. Evaluation of initial participation in public reporting of American College of Surgeons NSQIP surgical outcomes on Medicare's Hospital Compare website. J Am Coll Surg. 2014 Mar; 218(3):374-80, 380.e1-5. Dahlke AR, Chung JW, Holl JL, Ko CY, Rajaram R, Modla L, Makary MA, Bilimoria KY. PMID: 24468223.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    94. An opportunity to improve informed consent and shared decision making: the role of the ACS NSQIP Surgical Risk Calculator in oncology. Ann Surg Oncol. 2014 Jan; 21(1):5-7. Paruch JL, Ko CY, Bilimoria KY. PMID: 24197763.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    95. Evaluation of surveillance bias and the validity of the venous thromboembolism quality measure. JAMA. 2013 Oct 09; 310(14):1482-9. Bilimoria KY, Chung J, Ju MH, Haut ER, Bentrem DJ, Ko CY, Baker DW. PMID: 24100354.
      View in: PubMed   Mentions: 27     Fields:    Translation:Humans
    96. Development and evaluation of the universal ACS NSQIP surgical risk calculator: a decision aid and informed consent tool for patients and surgeons. J Am Coll Surg. 2013 Nov; 217(5):833-42.e1-3. Bilimoria KY, Liu Y, Paruch JL, Zhou L, Kmiecik TE, Ko CY, Cohen ME. PMID: 24055383.
      View in: PubMed   Mentions: 163     Fields:    Translation:Humans
    97. Risk factors for superficial vs deep/organ-space surgical site infections: implications for quality improvement initiatives. JAMA Surg. 2013 Sep; 148(9):849-58. Lawson EH, Hall BL, Ko CY. PMID: 23864108.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    98. Effect of cancer surgery complexity on short-term outcomes, risk predictions, and hospital comparisons. J Am Coll Surg. 2013 Oct; 217(4):685-93. Merkow RP, Bentrem DJ, Cohen ME, Paruch JL, Weber SM, Ko CY, Bilimoria KY. PMID: 23830986.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    99. Surgical quality measurement: an evolving science. JAMA Surg. 2013 Jul; 148(7):586-7. Merkow RP, Bilimoria KY, Ko CY. PMID: 23864242.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    100. Differences in patients, surgical complexity, and outcomes after cancer surgery at National Cancer Institute-designated cancer centers compared to other hospitals. Med Care. 2013 Jul; 51(7):606-13. Merkow RP, Bentrem DJ, Chung JW, Paruch JL, Ko CY, Bilimoria KY. PMID: 23604012.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    101. Association between occurrence of a postoperative complication and readmission: implications for quality improvement and cost savings. Ann Surg. 2013 Jul; 258(1):10-8. Lawson EH, Hall BL, Louie R, Ettner SL, Zingmond DS, Han L, Rapp M, Ko CY. PMID: 23579579.
      View in: PubMed   Mentions: 46     Fields:    Translation:Humans
    102. Optimizing ACS NSQIP modeling for evaluation of surgical quality and risk: patient risk adjustment, procedure mix adjustment, shrinkage adjustment, and surgical focus. J Am Coll Surg. 2013 Aug; 217(2):336-46.e1. Cohen ME, Ko CY, Bilimoria KY, Zhou L, Huffman K, Wang X, Liu Y, Kraemer K, Meng X, Merkow R, Chow W, Matel B, Richards K, Hart AJ, Dimick JB, Hall BL. PMID: 23628227.
      View in: PubMed   Mentions: 78     Fields:    Translation:Humans
    103. Validity and feasibility of the american college of surgeons colectomy composite outcome quality measure. Ann Surg. 2013 Mar; 257(3):483-9. Merkow RP, Hall BL, Cohen ME, Wang X, Adams JL, Chow WB, Lawson EH, Bilimoria KY, Richards K, Ko CY. PMID: 23299518.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    104. Effect of including cancer-specific variables on risk-adjusted hospital surgical quality comparisons. Ann Surg Oncol. 2013 Jun; 20(6):1766-73. Merkow RP, Bentrem DJ, Winchester DP, Stewart AK, Ko CY, Bilimoria KY. PMID: 23354565.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    105. American College of Surgeons National Surgical Quality Improvement Program Pediatric: a beta phase report. J Pediatr Surg. 2013 Jan; 48(1):74-80. Bruny JL, Hall BL, Barnhart DC, Billmire DF, Dias MS, Dillon PW, Fisher C, Heiss KF, Hennrikus WL, Ko CY, Moss L, Oldham KT, Richards KE, Shah R, Vinocur CD, Ziegler MM. PMID: 23331796.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    106. A comparison of clinical registry versus administrative claims data for reporting of 30-day surgical complications. Ann Surg. 2012 Dec; 256(6):973-81. Lawson EH, Louie R, Zingmond DS, Brook RH, Hall BL, Han L, Rapp M, Ko CY. PMID: 23095667.
      View in: PubMed   Mentions: 64     Fields:    Translation:Humans
    107. Effect of including cancer-specific variables on models examining short-term outcomes. Cancer. 2013 Apr 01; 119(7):1412-9. Merkow RP, Kmiecik TE, Bentrem DJ, Winchester DP, Stewart AK, Ko CY, Bilimoria KY. PMID: 23184472.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    108. Linkage of a clinical surgical registry with Medicare inpatient claims data using indirect identifiers. Surgery. 2013 Mar; 153(3):423-30. Lawson EH, Ko CY, Louie R, Han L, Rapp M, Zingmond DS. PMID: 23122901.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    109. Short-term outcomes after esophagectomy at 164 American College of Surgeons National Surgical Quality Improvement Program hospitals: effect of operative approach and hospital-level variation. Arch Surg. 2012 Nov; 147(11):1009-16. Merkow RP, Bilimoria KY, McCarter MD, Phillips JD, DeCamp MM, Sherman KL, Ko CY, Bentrem DJ. PMID: 23165615.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    110. The appropriateness method has acceptable reliability and validity for assessing overuse and underuse of surgical procedures. J Clin Epidemiol. 2012 Nov; 65(11):1133-43. Lawson EH, Gibbons MM, Ko CY, Shekelle PG. PMID: 23017632.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    111. Association between postoperative complications and reoperation for patients undergoing geriatric surgery and the effect of reoperation on mortality. Am Surg. 2012 Oct; 78(10):1137-42. Chow WB, Merkow RP, Cohen ME, Bilimoria KY, Ko CY. PMID: 23025958.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    112. Optimal preoperative assessment of the geriatric surgical patient: a best practices guideline from the American College of Surgeons National Surgical Quality Improvement Program and the American Geriatrics Society. J Am Coll Surg. 2012 Oct; 215(4):453-66. Chow WB, Rosenthal RA, Merkow RP, Ko CY, Esnaola NF. PMID: 22917646.
      View in: PubMed   Mentions: 88     Fields:    Translation:Humans
    113. Outcomes research in surgical oncology. Surg Oncol Clin N Am. 2012 Jul; 21(3):xv-xvi. Ko CY, Merkow RP. PMID: 22583999.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    114. Variation in lymph node examination after esophagectomy for cancer in the United States. Arch Surg. 2012 Jun; 147(6):505-11. Merkow RP, Bilimoria KY, Chow WB, Merkow JS, Weyant MJ, Ko CY, Bentrem DJ. PMID: 22351873.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    115. Appropriate use of surgical procedures for patients with cancer. Surg Oncol Clin N Am. 2012 Jul; 21(3):479-86, ix. Lawson EH, Gibbons MM, Ko CY. PMID: 22583995.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    116. Reliability adjustment for reporting hospital outcomes with surgery. Ann Surg. 2012 Apr; 255(4):703-7. Dimick JB, Ghaferi AA, Osborne NH, Ko CY, Hall BL. PMID: 22388108.
      View in: PubMed   Mentions: 33     Fields:    Translation:Humans
    117. Relevance of the c-statistic when evaluating risk-adjustment models in surgery. J Am Coll Surg. 2012 May; 214(5):822-30. Merkow RP, Hall BL, Cohen ME, Dimick JB, Wang E, Chow WB, Ko CY, Bilimoria KY. PMID: 22440055.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    118. Identifying worsening surgical site infection performance: control charts versus risk-adjusted rate outlier status. Am J Med Qual. 2012 Sep-Oct; 27(5):391-7. Lawson EH, Hall BL, Esnaola NF, Ko CY. PMID: 22326982.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    119. Clinical scholars in residence program: A beneficial experience for surgical residents and the ACS. Bull Am Coll Surg. 2012 Feb; 97(2):51-2. Bilimoria K, Ko CY. PMID: 24010257.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    120. Preoperative predictors of weight loss following bariatric surgery: systematic review. Obes Surg. 2012 Jan; 22(1):70-89. Livhits M, Mercado C, Yermilov I, Parikh JA, Dutson E, Mehran A, Ko CY, Gibbons MM. PMID: 21833817.
      View in: PubMed   Mentions: 144     Fields:    Translation:Humans
    121. Appropriateness criteria to assess variations in surgical procedure use in the United States. Arch Surg. 2011 Dec; 146(12):1433-40. Lawson EH, Gibbons MM, Ingraham AM, Shekelle PG, Ko CY. PMID: 22184308.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    122. Effect of histologic subtype on treatment and outcomes for esophageal cancer in the United States. Cancer. 2012 Jul 01; 118(13):3268-76. Merkow RP, Bilimoria KY, McCarter MD, Chow WB, Gordon HS, Stewart AK, Ko CY, Bentrem DJ. PMID: 22006369.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    123. New developments in geriatric surgery. Curr Probl Surg. 2011 Oct; 48(10):670-754. Zenilman ME, Chow WB, Ko CY, Ibrahim AM, Makary MA, Lagoo-Deenadayalan S, Dardik A, Boyd CA, Riall TS, Sosa JA, Tummel E, Gould LJ, Segev DL, Berger JC. PMID: 21907843.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    124. Quality improvement pilot program for vulnerable elderly surgical patients. Am Surg. 2011 Oct; 77(10):1305-8. Cronin J, Livhits M, Mercado C, Chen F, Foster N, Chandler C, Gibbons M, Ko CY, Chen DC. PMID: 22127075.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    125. First report from the American College of Surgeons Bariatric Surgery Center Network: laparoscopic sleeve gastrectomy has morbidity and effectiveness positioned between the band and the bypass. Ann Surg. 2011 Sep; 254(3):410-20; discussion 420-2. Hutter MM, Schirmer BD, Jones DB, Ko CY, Cohen ME, Merkow RP, Nguyen NT. PMID: 21865942.
      View in: PubMed   Mentions: 170     Fields:    Translation:Humans
    126. Preventing unintended consequences of quality measurement. Arch Surg. 2011 Sep; 146(9):1072-3. Lawson EH, Ko CY. PMID: 22029071.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    127. Evidence-based medicine in surgery: the importance of both experimental and observational study designs. JAMA. 2011 Jul 27; 306(4):436-7. Merkow RP, Ko CY. PMID: 21791695.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    128. Use of multimodality neoadjuvant therapy for esophageal cancer in the United States: assessment of 987 hospitals. Ann Surg Oncol. 2012 Feb; 19(2):357-64. Merkow RP, Bilimoria KY, McCarter MD, Chow WB, Ko CY, Bentrem DJ. PMID: 21769460.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    129. Post-discharge venous thromboembolism after cancer surgery: extending the case for extended prophylaxis. Ann Surg. 2011 Jul; 254(1):131-7. Merkow RP, Bilimoria KY, McCarter MD, Cohen ME, Barnett CC, Raval MV, Caprini JA, Gordon HS, Ko CY, Bentrem DJ. PMID: 21527843.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    130. Patient behaviors associated with weight regain after laparoscopic gastric bypass. Obes Res Clin Pract. 2011 Jul-Sep; 5(3):e169-266. Livhits M, Mercado C, Yermilov I, Parikh JA, Dutson E, Mehran A, Ko CY, Gibbons MM. PMID: 24331108.
      View in: PubMed   Mentions: 9     Fields:    
    131. Reliability of superficial surgical site infections as a hospital quality measure. J Am Coll Surg. 2011 Aug; 213(2):231-5. Kao LS, Ghaferi AA, Ko CY, Dimick JB. PMID: 21622011.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    132. Risk of surgery following recent myocardial infarction. Ann Surg. 2011 May; 253(5):857-64. Livhits M, Ko CY, Leonardi MJ, Zingmond DS, Gibbons MM, de Virgilio C. PMID: 21372685.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    133. Morbidity and mortality after colorectal procedures: comparison of data from the American College of Surgeons case log system and the ACS NSQIP. J Am Coll Surg. 2011 Jun; 212(6):1077-85. Lawson EH, Wang X, Cohen ME, Hall BL, Tanzman H, Ko CY. PMID: 21470879.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    134. Coronary revascularization after myocardial infarction can reduce risks of noncardiac surgery. J Am Coll Surg. 2011 Jun; 212(6):1018-26. Livhits M, Gibbons MM, de Virgilio C, O'Connell JB, Leonardi MJ, Ko CY, Zingmond DS. PMID: 21441043.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    135. Effect of trauma center status on 30-day outcomes after emergency general surgery. J Am Coll Surg. 2011 Mar; 212(3):277-86. Ingraham AM, Cohen ME, Raval MV, Ko CY, Nathens AB. PMID: 21356485.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansPHPublic Health
    136. Physician and Practice Characteristics Influencing Tumor Board Attendance: Results From the Provider Survey of the Los Angeles Women's Health Study. J Oncol Pract. 2011 Mar; 7(2):103-10. Scher KS, Tisnado DM, Rose DE, Adams JL, Ko CY, Malin JL, Ganz PA, Kahn KL. PMID: 21731518.
      View in: PubMed   Mentions: 6     Fields:    
    137. Quality measurement in cancer care delivery. Ann Surg Oncol. 2011 Mar; 18(3):611-8. Wasif N, Cormier JN, Ko CY, McCahill LE, Edge SB, Wong SL, Anthony T, Kollmorgen D, Marcus SG, Bleznak A, Leong SP. PMID: 21207161.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    138. Pediatric American College of Surgeons National Surgical Quality Improvement Program: feasibility of a novel, prospective assessment of surgical outcomes. J Pediatr Surg. 2011 Jan; 46(1):115-21. Raval MV, Dillon PW, Bruny JL, Ko CY, Hall BL, Moss RL, Oldham KT, Richards KE, Vinocur CD, Ziegler MM. PMID: 21238651.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    139. The role of Surgical Champions in the American College of Surgeons National Surgical Quality Improvement Program--a national survey. J Surg Res. 2011 Mar; 166(1):e15-25. Raval MV, Bentrem DJ, Eskandari MK, Ingraham AM, Hall BL, Randolph B, Ko CY, Morton JM. PMID: 21176914.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    140. Routine preventive care and cancer surveillance in long-term survivors of colorectal cancer: results from National Surgical Adjuvant Breast and Bowel Project Protocol LTS-01. J Clin Oncol. 2010 Dec 20; 28(36):5274-9. Kunitake H, Zheng P, Yothers G, Land SR, Fehrenbacher L, Giguere JK, Wickerham DL, Wickerham L, Ganz PA, Ko CY. PMID: 21079140.
      View in: PubMed   Mentions: 11     Fields:    Translation:HumansPHPublic Health
    141. Use of sentinel lymph node biopsy for melanoma in children and adolescents. J Surg Oncol. 2010 Nov 01; 102(6):634-9. Raval MV, Bilimoria KY, Bentrem DJ, Stewart AK, Ko CY, Reynolds M, Wayne JD. PMID: 20721965.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    142. Trends, patterns, and outcomes in the management of malignant colonic polyps in the general population of the United States. Cancer. 2011 Mar 01; 117(5):931-7. Wasif N, Etzioni D, Maggard MA, Tomlinson JS, Ko CY. PMID: 20960490.
      View in: PubMed   Mentions: 9     Fields:    Translation:HumansPHPublic Health
    143. Behavioral factors associated with successful weight loss after gastric bypass. Am Surg. 2010 Oct; 76(10):1139-42. Livhits M, Mercado C, Yermilov I, Parikh JA, Dutson E, Mehran A, Ko CY, Gibbons MM. PMID: 21105629.
      View in: PubMed   Mentions: 29     Fields:    Translation:Humans
    144. Long-term patient outcome and quality of life after liver transplantation: analysis of 20-year survivors. Ann Surg. 2010 Oct; 252(4):652-61. Duffy JP, Kao K, Ko CY, Farmer DG, McDiarmid SV, Hong JC, Venick RS, Feist S, Goldstein L, Saab S, Hiatt JR, Busuttil RW. PMID: 20881772.
      View in: PubMed   Mentions: 44     Fields:    Translation:Humans
    145. Comparison of outlier identification methods in hospital surgical quality improvement programs. J Gastrointest Surg. 2010 Oct; 14(10):1600-7. Bilimoria KY, Cohen ME, Merkow RP, Wang X, Bentrem DJ, Ingraham AM, Richards K, Hall BL, Ko CY. PMID: 20824379.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    146. Comparison of outcomes after laparoscopic versus open appendectomy for acute appendicitis at 222 ACS NSQIP hospitals. Surgery. 2010 Oct; 148(4):625-35; discussion 635-7. Ingraham AM, Cohen ME, Bilimoria KY, Pritts TA, Ko CY, Esposito TJ. PMID: 20797745.
      View in: PubMed   Mentions: 48     Fields:    Translation:Humans
    147. Comparison of 30-day outcomes after emergency general surgery procedures: potential for targeted improvement. Surgery. 2010 Aug; 148(2):217-38. Ingraham AM, Cohen ME, Bilimoria KY, Raval MV, Ko CY, Nathens AB, Hall BL. PMID: 20633727.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    148. Caring for octogenarian and nonagenarian patients with colorectal cancer: what should our standards and expectations be? Dis Colon Rectum. 2010 May; 53(5):735-43. Kunitake H, Zingmond DS, Ryoo J, Ko CY. PMID: 20389207.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansPHPublic Health
    149. Utilization of total thyroidectomy for differentiated thyroid cancer in children. Ann Surg Oncol. 2010 Oct; 17(10):2545-53. Raval MV, Bentrem DJ, Stewart AK, Ko CY, Reynolds M. PMID: 20429037.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    150. Impact of tumor grade on prognosis in pancreatic cancer: should we include grade in AJCC staging? Ann Surg Oncol. 2010 Sep; 17(9):2312-20. Wasif N, Ko CY, Farrell J, Wainberg Z, Hines OJ, Reber H, Tomlinson JS. PMID: 20422460.
      View in: PubMed   Mentions: 29     Fields:    Translation:Humans
    151. Risk adjustment for comparing hospital quality with surgery: how many variables are needed? J Am Coll Surg. 2010 Apr; 210(4):503-8. Dimick JB, Osborne NH, Hall BL, Ko CY, Birkmeyer JD. PMID: 20347744.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    152. Exercise following bariatric surgery: systematic review. Obes Surg. 2010 May; 20(5):657-65. Livhits M, Mercado C, Yermilov I, Parikh JA, Dutson E, Mehran A, Ko CY, Gibbons MM. PMID: 20180039.
      View in: PubMed   Mentions: 52     Fields:    Translation:Humans
    153. Invasive lobular vs. ductal breast cancer: a stage-matched comparison of outcomes. Ann Surg Oncol. 2010 Jul; 17(7):1862-9. Wasif N, Maggard MA, Ko CY, Giuliano AE. PMID: 20162457.
      View in: PubMed   Mentions: 40     Fields:    Translation:Humans
    154. More than size matters. Arch Surg. 2010 Feb; 145(2):186. Chen F, Zingmond D, Ko C. PMID: 20183941.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    155. Underuse of axillary dissection for the management of sentinel node micrometastases in breast cancer. Arch Surg. 2010 Feb; 145(2):161-6. Wasif N, Maggard MA, Ko CY, Giuliano AE. PMID: 20157084.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    156. Quality of care in advanced ovarian cancer: the importance of provider specialty. Gynecol Oncol. 2010 Apr; 117(1):18-22. Mercado C, Zingmond D, Karlan BY, Sekaris E, Gross J, Maggard-Gibbons M, Tomlinson JS, Ko CY. PMID: 20106512.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    157. Identification of specific quality improvement opportunities for the elderly undergoing gastrointestinal surgery. Arch Surg. 2009 Nov; 144(11):1013-20. Bentrem DJ, Cohen ME, Hynes DM, Ko CY, Bilimoria KY. PMID: 19917937.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    158. Risk adjustment in the American College of Surgeons National Surgical Quality Improvement Program: a comparison of logistic versus hierarchical modeling. J Am Coll Surg. 2009 Dec; 209(6):687-93. Cohen ME, Dimick JB, Bilimoria KY, Ko CY, Richards K, Hall BL. PMID: 19959035.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    159. Does weight loss immediately before bariatric surgery improve outcomes: a systematic review. Surg Obes Relat Dis. 2009 Nov-Dec; 5(6):713-21. Livhits M, Mercado C, Yermilov I, Parikh JA, Dutson E, Mehran A, Ko CY, Gibbons MM. PMID: 19879814.
      View in: PubMed   Mentions: 29     Fields:    Translation:Humans
    160. Variability in reoperation rates at 182 hospitals: a potential target for quality improvement. J Am Coll Surg. 2009 Nov; 209(5):557-64. Merkow RP, Bilimoria KY, Cohen ME, Richards K, Ko CY, Hall BL. PMID: 19854394.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    161. Developing quality indicators for elderly surgical patients. Ann Surg. 2009 Aug; 250(2):338-47. McGory ML, Kao KK, Shekelle PG, Rubenstein LZ, Leonardi MJ, Parikh JA, Fink A, Ko CY. PMID: 19638913.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    162. Cancer survivorship research: the challenge of recruiting adult long term cancer survivors from a cooperative clinical trials group. J Cancer Surviv. 2009 Sep; 3(3):137-47. Ganz PA, Land SR, Antonio C, Zheng P, Yothers G, Petersen L, Wickerham DL, Wolmark N, Ko CY. PMID: 19526347.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    163. Complication rates following open reduction and internal fixation of ankle fractures. J Bone Joint Surg Am. 2009 May; 91(5):1042-9. SooHoo NF, Krenek L, Eagan MJ, Gurbani B, Ko CY, Zingmond DS. PMID: 19411451.
      View in: PubMed   Mentions: 53     Fields:    Translation:Humans
    164. Investigations using clinical data registries: observational studies and risk adjustment. Surgery. 2009 Jun; 145(6):602-10. Hall BL, Bilimoria KY, Ko CY. PMID: 19486759.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    165. Appropriateness criteria for bariatric surgery: beyond the NIH guidelines. Obesity (Silver Spring). 2009 Aug; 17(8):1521-7. Yermilov I, McGory ML, Shekelle PW, Ko CY, Maggard MA. PMID: 19343019.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    166. Perioperative quality-of-care measures for patients undergoing total hip or total knee replacement. J Long Term Eff Med Implants. 2009; 19(4):249-53. Soohoo NF, Lieberman JR, Farng E, Park S, Jain S, Ko CY. PMID: 21083530.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    167. Variation in physician-patient discussion of breast reconstruction. J Gen Intern Med. 2009 Jan; 24(1):99-104. Chen JY, Malin J, Ganz PA, Ko C, Tisnado D, Tao ML, Timmer M, Adams JL, Kahn KL. PMID: 19023629.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    168. Readmissions following pancreaticoduodenectomy for pancreas cancer: a population-based appraisal. Ann Surg Oncol. 2009 Mar; 16(3):554-61. Yermilov I, Bentrem D, Sekeris E, Jain S, Maggard MA, Ko CY, Tomlinson JS. PMID: 19002528.
      View in: PubMed   Mentions: 38     Fields:    Translation:Humans
    169. Utilization of parenteral nutrition following pancreaticoduodenectomy: is routine jejunostomy tube placement warranted? Dig Dis Sci. 2009 Jul; 54(7):1582-8. Yermilov I, Jain S, Sekeris E, Bentrem DJ, Hines OJ, Reber HA, Ko CY, Tomlinson JS. PMID: 18958617.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    170. How to measure the quality of surgery-related web sites. Am Surg. 2008 Oct; 74(10):997-1000. Yermilov I, Chow W, Devgan L, Makary M, Ko CY. PMID: 18942631.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    171. What is the rate of small bowel obstruction after colectomy? Am Surg. 2008 Oct; 74(10):1001-5. Parikh JA, Ko CY, Maggard MA, Zingmond DS. PMID: 18942632.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    172. Do racial/ethnic disparities exist in the utilization of high-volume surgeons for women with ovarian cancer? Gynecol Oncol. 2008 Nov; 111(2):166-72. Aranda MA, McGory M, Sekeris E, Maggard M, Ko C, Zingmond DS. PMID: 18829086.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    173. Demographic and clinical factors related to ostomy complications and quality of life in veterans with an ostomy. J Wound Ostomy Continence Nurs. 2008 Sep-Oct; 35(5):493-503. Pittman J, Rawl SM, Schmidt CM, Grant M, Ko CY, Wendel C, Krouse RS. PMID: 18794701.
      View in: PubMed   Mentions: 27     Fields:    Translation:Humans
    174. Use and outcomes of laparoscopic-assisted colectomy for cancer in the United States. Arch Surg. 2008 Sep; 143(9):832-9; discussion 839-40. Bilimoria KY, Bentrem DJ, Nelson H, Stryker SJ, Stewart AK, Soper NJ, Russell TR, Ko CY. PMID: 18794419.
      View in: PubMed   Mentions: 33     Fields:    Translation:Humans
    175. Are 12 nodes needed to accurately stage T1 and T2 colon cancers? Dig Dis Sci. 2009 Mar; 54(3):640-7. Maggard MA, Yermilov I, Tomlinson JS, Ko CY. PMID: 18612817.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    176. What is the quality of surgery-related information on the internet? Lessons learned from a standardized evaluation of 10 common operations. J Am Coll Surg. 2008 Oct; 207(4):580-6. Yermilov I, Chow W, Devgan L, Makary MA, Ko CY. PMID: 18926463.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    177. The natural history of diverticulitis: implications for elective surgery. J Gastrointest Surg. 2008 Aug; 12(8):1312-3. Ko C. PMID: 18584261.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    178. Laparoscopic-assisted vs. open colectomy for cancer: comparison of short-term outcomes from 121 hospitals. J Gastrointest Surg. 2008 Nov; 12(11):2001-9. Bilimoria KY, Bentrem DJ, Merkow RP, Nelson H, Wang E, Ko CY, Soper NJ. PMID: 18575941.
      View in: PubMed   Mentions: 38     Fields:    Translation:Humans
    179. Directing surgical quality improvement initiatives: comparison of perioperative mortality and long-term survival for cancer surgery. J Clin Oncol. 2008 Oct 01; 26(28):4626-33. Bilimoria KY, Bentrem DJ, Feinglass JM, Stewart AK, Winchester DP, Talamonti MS, Ko CY. PMID: 18574159.
      View in: PubMed   Mentions: 31     Fields:    Translation:Humans
    180. A structured conference program improves competency-based surgical education. Am J Surg. 2008 Aug; 196(2):273-9. Parikh JA, McGory ML, Ko CY, Hines OJ, Tillou A, Hiatt JR. PMID: 18558395.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    181. Disparities in the utilization of high-volume hospitals for total knee replacement. J Natl Med Assoc. 2008 May; 100(5):559-64. SooHoo NF, Zingmond DS, Ko CY. PMID: 18507209.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    182. Complete lymph node dissection for sentinel node-positive melanoma: assessment of practice patterns in the United States. Ann Surg Oncol. 2008 Jun; 15(6):1566-76. Bilimoria KY, Balch CM, Bentrem DJ, Talamonti MS, Ko CY, Lange JR, Winchester DP, Wayne JD. PMID: 18414952.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    183. Squamous cell carcinoma of the anal canal: utilization and outcomes of recommended treatment in the United States. Ann Surg Oncol. 2008 Jul; 15(7):1948-58. Bilimoria KY, Bentrem DJ, Ko CY, Stewart AK, Winchester DP, Talamonti MS, Halverson AL. PMID: 18414951.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    184. Minimizing disparities in surgical care: a research focus for the future. World J Surg. 2008 Apr; 32(4):516-21. Ryoo JJ, Ko CY. PMID: 18204986.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    185. Survival after resection of ampullary carcinoma: a national population-based study. Ann Surg Oncol. 2008 Jul; 15(7):1820-7. O'Connell JB, Maggard MA, Manunga J, Tomlinson JS, Reber HA, Ko CY, Hines OJ. PMID: 18369675.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    186. The National Cancer Data Base: a powerful initiative to improve cancer care in the United States. Ann Surg Oncol. 2008 Mar; 15(3):683-90. Bilimoria KY, Stewart AK, Winchester DP, Ko CY. PMID: 18183467.
      View in: PubMed   Mentions: 220     Fields:    Translation:Humans
    187. Diminishing disparities: starting in our own backyards. Ann Surg Oncol. 2008 Mar; 15(3):674-6. Ryoo JJ, Jain S, Ko CY. PMID: 18095032.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    188. Secondary analyses of large population-based data sets: issues of quality, standards, and understanding. Ann Surg Oncol. 2008 Feb; 15(2):395-6. Ko CY, Parikh J, Zingmond D. PMID: 18071826.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    189. Quality of care issues in colorectal cancer. Clin Cancer Res. 2007 Nov 15; 13(22 Pt 2):6897s-902s. Leonardi MJ, McGory ML, Ko CY. PMID: 18006797.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    190. Utilization of total thyroidectomy for papillary thyroid cancer in the United States. Surgery. 2007 Dec; 142(6):906-13; discussion 913.e1-2. Bilimoria KY, Bentrem DJ, Linn JG, Freel A, Yeh JJ, Stewart AK, Winchester DP, Ko CY, Talamonti MS, Sturgeon C. PMID: 18063075.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    191. Quality of pancreatic cancer care at Veterans Administration compared with non-Veterans Administration hospitals. Am J Surg. 2007 Nov; 194(5):588-93. Bilimoria KY, Bentrem DJ, Tomlinson JS, Merkow RP, Stewart AK, Ko CY, Prystowsky JB, Talamonti MS. PMID: 17936418.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    192. How much do standardized forms improve the documentation of quality of care? J Surg Res. 2007 Nov; 143(1):158-63. Parikh JA, Yermilov I, Jain S, McGory ML, Ko CY, Maggard MA. PMID: 17950087.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    193. Surviving colorectal cancer : patient-reported symptoms 4 years after diagnosis. Cancer. 2007 Nov 01; 110(9):2075-82. Schneider EC, Malin JL, Kahn KL, Ko CY, Adams J, Epstein AM. PMID: 17849466.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    194. Surgeon volume as a predictor of outcomes in inpatient and outpatient endocrine surgery. Surgery. 2007 Dec; 142(6):887-99; discussion 887-99. Stavrakis AI, Ituarte PH, Ko CY, Yeh MW. PMID: 18063073.
      View in: PubMed   Mentions: 62     Fields:    Translation:Humans
    195. Is high BMI associated with specific complications after laparoscopic Roux-en-Y gastric bypass? Am Surg. 2007 Oct; 73(10):959-62. Parikh J, Yermilov I, McGory M, Jain S, Ko CY, Maggard M. PMID: 17983056.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    196. Comparison of reoperation rates following ankle arthrodesis and total ankle arthroplasty. J Bone Joint Surg Am. 2007 Oct; 89(10):2143-9. SooHoo NF, Zingmond DS, Ko CY. PMID: 17908889.
      View in: PubMed   Mentions: 37     Fields:    Translation:Humans
    197. Impact of adjuvant radiation on survival: a note of caution when using cancer registry data to evaluate adjuvant treatments. Ann Surg Oncol. 2007 Dec; 14(12):3321-7. Bilimoria KY, Stewart AK, Tomlinson JS, Gay EG, Ko CY, Talamonti MS, Bentrem DJ. PMID: 17899285.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    198. Clinicopathologic features and treatment trends of pancreatic neuroendocrine tumors: analysis of 9,821 patients. J Gastrointest Surg. 2007 Nov; 11(11):1460-7; discussion 1467-9. Bilimoria KY, Tomlinson JS, Merkow RP, Stewart AK, Ko CY, Talamonti MS, Bentrem DJ. PMID: 17846854.
      View in: PubMed   Mentions: 42     Fields:    Translation:Humans
    199. Publicly available hospital comparison web sites: determination of useful, valid, and appropriate information for comparing surgical quality. Arch Surg. 2007 Sep; 142(9):863-8; discussion 868-9. Leonardi MJ, McGory ML, Ko CY. PMID: 17875841.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    200. Negative appendectomy in pregnant women is associated with a substantial risk of fetal loss. J Am Coll Surg. 2007 Oct; 205(4):534-40. McGory ML, Zingmond DS, Tillou A, Hiatt JR, Ko CY, Cryer HM. PMID: 17903726.
      View in: PubMed   Mentions: 34     Fields:    Translation:Humans
    201. Application of the pancreatic adenocarcinoma staging system to pancreatic neuroendocrine tumors. J Am Coll Surg. 2007 Oct; 205(4):558-63. Bilimoria KY, Bentrem DJ, Merkow RP, Tomlinson JS, Stewart AK, Ko CY, Talamonti MS. PMID: 17903729.
      View in: PubMed   Mentions: 34     Fields:    Translation:Humans
    202. Accuracy of staging node-negative pancreas cancer: a potential quality measure. Arch Surg. 2007 Aug; 142(8):767-723; discussion 773-4. Tomlinson JS, Jain S, Bentrem DJ, Sekeris EG, Maggard MA, Hines OJ, Reber HA, Ko CY. PMID: 17709731.
      View in: PubMed   Mentions: 34     Fields:    Translation:Humans
    203. The significance of inadvertent splenectomy during colorectal cancer resection. Arch Surg. 2007 Jul; 142(7):668-74. McGory ML, Zingmond DS, Sekeris E, Ko CY. PMID: 17638806.
      View in: PubMed   Mentions: 13     Fields:    Translation:HumansPHPublic Health
    204. The surgeon's role in the quality of oncologic care. J Natl Compr Canc Netw. 2007 Jul; 5(6):565-7. Ko C, Parikh J, Yermilov I, Tomlinson J. PMID: 17674481.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    205. A systematic review of deep venous thrombosis prophylaxis in cancer patients: implications for improving quality. Ann Surg Oncol. 2007 Feb; 14(2):929-36. Leonardi MJ, McGory ML, Ko CY. PMID: 17103259.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    206. Meta-analysis in surgery: methods and limitations. Arch Surg. 2006 Nov; 141(11):1125-30; discussion 1131. Ng TT, McGory ML, Ko CY, Maggard MA. PMID: 17116806.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    207. Disparities in the utilization of high-volume hospitals for complex surgery. JAMA. 2006 Oct 25; 296(16):1973-80. Liu JH, Zingmond DS, McGory ML, SooHoo NF, Ettner SL, Brook RH, Ko CY. PMID: 17062860.
      View in: PubMed   Mentions: 94     Fields:    Translation:Humans
    208. Development of quality indicators: lessons learned in bariatric surgery. Am Surg. 2006 Oct; 72(10):870-4. Maggard MA, McGory ML, Ko CY. PMID: 17058724.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    209. The rate of bleeding complications after pharmacologic deep venous thrombosis prophylaxis: a systematic review of 33 randomized controlled trials. Arch Surg. 2006 Aug; 141(8):790-7; discussion 797-9. Leonardi MJ, McGory ML, Ko CY. PMID: 16924087.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    210. Optimal timeframe for reporting short-term complication rates after total knee arthroplasty. J Arthroplasty. 2006 Aug; 21(5):705-11. Soohoo NF, Zingmond DS, Lieberman JR, Ko CY. PMID: 16877157.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    211. Rare tumors of the colon and rectum: a national review. Int J Colorectal Dis. 2007 Feb; 22(2):183-9. Kang H, O'Connell JB, Leonardi MJ, Maggard MA, McGory ML, Ko CY. PMID: 16845516.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    212. Small bowel obstruction: a population-based appraisal. J Am Coll Surg. 2006 Aug; 203(2):170-6. Foster NM, McGory ML, Zingmond DS, Ko CY. PMID: 16864029.
      View in: PubMed   Mentions: 39     Fields:    Translation:HumansPHPublic Health
    213. Measuring the quality of colorectal cancer screening: the importance of follow-up. Dis Colon Rectum. 2006 Jul; 49(7):1002-10. Etzioni DA, Yano EM, Rubenstein LV, Lee ML, Ko CY, Brook RH, Parkerton PH, Asch SM. PMID: 16673056.
      View in: PubMed   Mentions: 37     Fields:    Translation:HumansPHPublic Health
    214. Quality indicators in bariatric surgery: improving quality of care. Surg Obes Relat Dis. 2006 Jul-Aug; 2(4):423-9; discussion 429-30. Maggard MA, McGory ML, Shekelle PG, Ko CY. PMID: 16925372.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    215. Patient satisfaction: an increasingly important measure of quality. Ann Surg Oncol. 2006 Jun; 13(6):764-5. Tomlinson JS, Ko CY. PMID: 16614874.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    216. The VA Ostomy Health-Related Quality of Life Study: objectives, methods, and patient sample. Curr Med Res Opin. 2006 Apr; 22(4):781-91. Krouse RS, Mohler MJ, Wendel CS, Grant M, Baldwin CM, Rawl SM, McCorkle R, Rosenfeld KE, Ko CY, Schmidt CM, Coons SJ. PMID: 16684439.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    217. A patient's race/ethnicity does not explain the underuse of appropriate adjuvant therapy in colorectal cancer. Dis Colon Rectum. 2006 Mar; 49(3):319-29. McGory ML, Zingmond DS, Sekeris E, Bastani R, Ko CY. PMID: 16475031.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    218. Factors predicting complication rates following total knee replacement. J Bone Joint Surg Am. 2006 Mar; 88(3):480-5. SooHoo NF, Lieberman JR, Ko CY, Zingmond DS. PMID: 16510811.
      View in: PubMed   Mentions: 61     Fields:    Translation:Humans
    219. Understanding cancer patients' experience and outcomes: development and pilot study of the Cancer Care Outcomes Research and Surveillance patient survey. Support Care Cancer. 2006 Aug; 14(8):837-48. Malin JL, Ko C, Ayanian JZ, Harrington D, Nerenz DR, Kahn KL, Ganther-Urmie J, Catalano PJ, Zaslavsky AM, Wallace RB, Guadagnoli E, Arora NK, Roudier MD, Ganz PA. PMID: 16482448.
      View in: PubMed   Mentions: 67     Fields:    Translation:Humans
    220. Thirty-day mortality statistics underestimate the risk of repair of thoracoabdominal aortic aneurysms: a statewide experience. J Vasc Surg. 2006 Feb; 43(2):217-22; discussion 223. Rigberg DA, McGory ML, Zingmond DS, Maggard MA, Agustin M, Lawrence PF, Ko CY. PMID: 16476589.
      View in: PubMed   Mentions: 37     Fields:    Translation:Humans
    221. Age stratified, perioperative, and one-year mortality after abdominal aortic aneurysm repair: a statewide experience. J Vasc Surg. 2006 Feb; 43(2):224-9. Rigberg DA, Zingmond DS, McGory ML, Maggard MA, Agustin M, Lawrence PF, Ko CY. PMID: 16476591.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    222. Primary total knee arthroplasty in California 1991 to 2001: does hospital volume affect outcomes? J Arthroplasty. 2006 Feb; 21(2):199-205. Soohoo NF, Zingmond DS, Lieberman JR, Ko CY. PMID: 16520207.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    223. Colorectal cancer: epidemiology and health services research. Surg Oncol Clin N Am. 2006 Jan; 15(1):21-37. Hill LB, O'Connell JB, Ko CY. PMID: 16389148.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    224. Malignancies of the appendix: beyond case series reports. Dis Colon Rectum. 2005 Dec; 48(12):2264-71. McGory ML, Maggard MA, Kang H, O'Connell JB, Ko CY. PMID: 16258711.
      View in: PubMed   Mentions: 57     Fields:    Translation:Humans
    225. Hospitalization before and after gastric bypass surgery. JAMA. 2005 Oct 19; 294(15):1918-24. Zingmond DS, McGory ML, Ko CY. PMID: 16234498.
      View in: PubMed   Mentions: 35     Fields:    Translation:Humans
    226. Developing quality indicators for elderly patients undergoing abdominal operations. J Am Coll Surg. 2005 Dec; 201(6):870-83. McGory ML, Shekelle PG, Rubenstein LZ, Fink A, Ko CY. PMID: 16310690.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    227. Quality in surgery: current issues for the future. World J Surg. 2005 Oct; 29(10):1204-9. Ko CY, Maggard M, Agustin M. PMID: 16136282.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    228. Negative appendectomy rate: influence of CT scans. Am Surg. 2005 Oct; 71(10):803-8. McGory ML, Zingmond DS, Nanayakkara D, Maggard MA, Ko CY. PMID: 16468523.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    229. Colorectal cancer: epidemiology, risk factors, and health services. Clin Colon Rectal Surg. 2005 Aug; 18(3):133-40. Amersi F, Agustin M, Ko CY. PMID: 20011296.
      View in: PubMed   Mentions:
    230. A meta-analysis of perioperative beta blockade: what is the actual risk reduction? Surgery. 2005 Aug; 138(2):171-9. McGory ML, Maggard MA, Ko CY. PMID: 16153424.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    231. A 10-year outcomes evaluation of mucinous and signet-ring cell carcinoma of the colon and rectum. Dis Colon Rectum. 2005 Jun; 48(6):1161-8. Kang H, O'Connell JB, Maggard MA, Sack J, Ko CY. PMID: 15868237.
      View in: PubMed   Mentions: 71     Fields:    Translation:Humans
    232. Effect of diabetes and hypertension on obesity-related mortality. Surgery. 2005 Jan; 137(1):16-25. Livingston EH, Ko CY. PMID: 15614276.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    233. Beyond the clinical trials: how often is sentinel lymph node dissection performed for breast cancer? Ann Surg Oncol. 2005 Jan; 12(1):41-7. Maggard MA, Lane KE, O'Connell JB, Nanyakkara DD, Ko CY. PMID: 15827777.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    234. Are survival rates different for young and older patients with rectal cancer? Dis Colon Rectum. 2004 Dec; 47(12):2064-9. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Ko CY. PMID: 15657655.
      View in: PubMed   Mentions: 41     Fields:    Translation:HumansPHPublic Health
    235. A population-based study of colorectal cancer test use: results from the 2001 California Health Interview Survey. Cancer. 2004 Dec 01; 101(11):2523-32. Etzioni DA, Ponce NA, Babey SH, Spencer BA, Brown ER, Ko CY, Chawla N, Breen N, Klabunde CN. PMID: 15505783.
      View in: PubMed   Mentions: 44     Fields:    Translation:HumansPHPublic Health
    236. Cancer-directed surgery for localized disease: decreased use in the elderly. Ann Surg Oncol. 2004 Nov; 11(11):962-9. O'Connell JB, Maggard MA, Ko CY. PMID: 15525824.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    237. Colon cancer survival rates with the new American Joint Committee on Cancer sixth edition staging. J Natl Cancer Inst. 2004 Oct 06; 96(19):1420-5. O'Connell JB, Maggard MA, Ko CY. PMID: 15467030.
      View in: PubMed   Mentions: 431     Fields:    Translation:Humans
    238. A report card on outcomes for surgically treated gastrointestinal cancers: are we improving? J Surg Res. 2004 Oct; 121(2):214-21. O'connell JB, Maggard MA, Liu JH, Etzioni DA, Ko CY. PMID: 15501461.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    239. What proportion of patients with an ostomy (for diverticulitis) get reversed? Am Surg. 2004 Oct; 70(10):928-31. Maggard MA, Zingmond D, O'Connell JB, Ko CY. PMID: 15529854.
      View in: PubMed   Mentions: 25     Fields:    Translation:Humans
    240. Predictors for medical students entering a general surgery residency: National survey results. Surgery. 2004 Sep; 136(3):567-72. Ko CY, Escarce JJ, Baker L, Klein D, Guarino C. PMID: 15349103.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    241. Health care access and poverty do not explain the higher esophageal cancer mortality in African Americans. Am J Surg. 2004 Jul; 188(1):22-6. Miller JA, Rege RV, Ko CY, Livingston EH. PMID: 15219480.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    242. Updated population-based review of carcinoid tumors. Ann Surg. 2004 Jul; 240(1):117-22. Maggard MA, O'Connell JB, Ko CY. PMID: 15213627.
      View in: PubMed   Mentions: 116     Fields:    Translation:Humans
    243. Palliative care for colorectal cancer. Surg Oncol Clin N Am. 2004 Jul; 13(3):467-77. Amersi F, Stamos MJ, Ko CY. PMID: 15236729.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    244. Do young colon cancer patients have worse outcomes? World J Surg. 2004 Jun; 28(6):558-62. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Livingston EH, Ko CY. PMID: 15366745.
      View in: PubMed   Mentions: 53     Fields:    Translation:Humans
    245. The increasing workload of general surgery. Arch Surg. 2004 Apr; 139(4):423-8. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Ko CY. PMID: 15078711.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    246. Surgery for hepatocellular carcinoma: does it improve survival? Ann Surg Oncol. 2004 Mar; 11(3):298-303. Liu JH, Chen PW, Asch SM, Busuttil RW, Ko CY. PMID: 14993025.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    247. Socioeconomic characteristics of the population eligible for obesity surgery. Surgery. 2004 Mar; 135(3):288-96. Livingston EH, Ko CY. PMID: 14976479.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    248. Workload projections for surgical oncology: will we need more surgeons? Ann Surg Oncol. 2003 Nov; 10(9):1112-7. Etzioni DA, Liu JH, Maggard MA, O'Connell JB, Ko CY. PMID: 14597452.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    249. Elderly patients in surgical workloads: a population-based analysis. Am Surg. 2003 Nov; 69(11):961-5. Etzioni DA, Liu JH, O'Connell JB, Maggard MA, Ko CY. PMID: 14627256.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    250. What predicts serious complications in colorectal cancer resection? Am Surg. 2003 Nov; 69(11):969-74. Zingmond D, Maggard M, O'Connell J, Liu J, Etzioni D, Ko C. PMID: 14627258.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    251. Anal canal cancer: a population-based reappraisal. Dis Colon Rectum. 2003 Nov; 46(11):1517-23; discussion 1523-4; author reply 1524. Maggard MA, Beanes SR, Ko CY. PMID: 14605572.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    252. Inpatient surgery in California: 1990-2000. Arch Surg. 2003 Oct; 138(10):1106-11; discussion 1111-2. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Hiyama DT, Ko CY. PMID: 14557128.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    253. Characterizing the performance and outcomes of obesity surgery in California. Am Surg. 2003 Oct; 69(10):823-8. Liu JH, Zingmond D, Etzioni DA, O'Connell JB, Maggard MA, Livingston EH, Liu CD, Ko CY. PMID: 14570356.
      View in: PubMed   Mentions: 20     Fields:    Translation:Humans
    254. Laparoscopic Nissen fundoplication improves quality of life in patients with atypical symptoms of gastroesophageal reflux. Am Surg. 2003 Oct; 69(10):833-8. Duffy JP, Maggard M, Hiyama DT, Atkinson JB, McFadden DW, Ko CY, Hines OJ. PMID: 14570358.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    255. Rates of colon and rectal cancers are increasing in young adults. Am Surg. 2003 Oct; 69(10):866-72. O'Connell JB, Maggard MA, Liu JH, Etzioni DA, Livingston EH, Ko CY. PMID: 14570365.
      View in: PubMed   Mentions: 79     Fields:    Translation:Humans
    256. Improved survival for adenocarcinoma of the ampulla of Vater: fifty-five consecutive resections. Arch Surg. 2003 Sep; 138(9):941-8; discussion 948-50. Duffy JP, Hines OJ, Liu JH, Ko CY, Cortina G, Isacoff WH, Nguyen H, Leonardi M, Tompkins RK, Reber HA. PMID: 12963649.
      View in: PubMed   Mentions: 36     Fields:    Translation:Humans
    257. Evaluating health utility in patients with melanoma, breast cancer, colon cancer, and lung cancer: a nationwide, population-based assessment. J Surg Res. 2003 Sep; 114(1):1-5. Ko CY, Maggard M, Livingston EH. PMID: 13678691.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    258. Sample size calculations in surgery: are they done correctly? Surgery. 2003 Aug; 134(2):275-9. Maggard MA, O'Connell JB, Liu JH, Etzioni DA, Ko CY. PMID: 12947329.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    259. The aging population and its impact on the surgery workforce. Ann Surg. 2003 Aug; 238(2):170-7. Etzioni DA, Liu JH, Maggard MA, Ko CY. PMID: 12894008.
      View in: PubMed   Mentions: 120     Fields:    Translation:HumansPHPublic Health
    260. Using volume criteria: do California hospitals measure up? J Surg Res. 2003 Jul; 113(1):96-101. Liu JH, Etzioni DA, O'Connell JB, Maggard MA, Ko CY. PMID: 12943816.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    261. Do young breast cancer patients have worse outcomes? J Surg Res. 2003 Jul; 113(1):109-13. Maggard MA, O'Connell JB, Lane KE, Liu JH, Etzioni DA, Ko CY. PMID: 12943818.
      View in: PubMed   Mentions: 45     Fields:    Translation:Humans
    262. Society of University Surgeons position statement on the volume-outcome relationship for surgical procedures. Surgery. 2003 Jul; 134(1):34-40. Berger DH, Ko CY, Spain DA. PMID: 12874580.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    263. Why do breast cancer mortality rates vary across states? Am Surg. 2003 Jan; 69(1):59-62. Maggard MA, Thompson JE, Ko CY. PMID: 12575783.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    264. Use of the health and activities limitation index as a measure of quality of life in obesity. Obes Res. 2002 Aug; 10(8):824-32. Livingston EH, Ko CY. PMID: 12181392.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    265. Are high-volume surgeons and hospitals the most important predictors of in-hospital outcome for colon cancer resection? Surgery. 2002 Aug; 132(2):268-73. Ko CY, Chang JT, Chaudhry S, Kominski G. PMID: 12219022.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    266. The need for a multidisciplinary approach to cancer care. J Surg Res. 2002 Jun 01; 105(1):53-7. Ko C, Chaudhry S. PMID: 12069502.
      View in: PubMed   Mentions: 34     Fields:    Translation:Humans
    267. Assessing the relative contribution of individual risk factors on surgical outcome for gastric bypass surgery: a baseline probability analysis. J Surg Res. 2002 Jun 01; 105(1):48-52. Livingston EH, Ko CY. PMID: 12069501.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    268. Reporting randomized, controlled trials: where quality of reporting may be improved. Dis Colon Rectum. 2002 Apr; 45(4):443-7. Ko CY, Sack J, Chang JT, Fink A. PMID: 12006922.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
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