C. Ko

C. Ko, C. Baldwin, K. Mitchell, 2007, Journal of wound, ostomy, and continence nursing : official publication of The Wound, Ostomy and Continence Nurses Society.

Surgery for Hepatocellular Carcinoma: Does It Improve Survival?

S. Asch, C. Ko, Jerome H. Liu, 2004, Annals of Surgical Oncology.

Extending the value of the National Surgical Quality Improvement Program claims dataset to study long-term outcomes: Rate of repeat ventral hernia repair.

C. Sugar, E. Lawson, C. Ko, 2015, Surgery.

Estrogen receptors in gallbladder cancer: detection by an improved immunohistochemical assay.

J E Thompson, C. Ko, J. Thompson, 1995, The American surgeon.

Post-Discharge Venous Thromboembolism After Cancer Surgery: Extending the Case for Extended Prophylaxis

M. McCarter, C. Ko, D. Bentrem, 2011, Annals of surgery.

Prevention of Perioperative Surgical Site Infection

C. Ko, Q. Hu, 2022 .

Anal Canal Cancer

C. Ko, M. Maggard, S. Beanes, 2003, Diseases of the colon and rectum.

Anal Canal Cancer

C. Ko, M. Maggard, S. Beanes, 2003 .

American College of Surgeons and Surgical Infection Society: Surgical Site Infection Guidelines, 2016 Update.

E. P. Dellinger, K. Itani, C. Ko, 2017, Journal of the American College of Surgeons.

Long-Term Patient Outcome and Quality of Life After Liver Transplantation: Analysis of 20-Year Survivors

Johnny C. Hong, J. Hiatt, C. Ko, 2010, Annals of surgery.

Utilization of total thyroidectomy for papillary thyroid cancer in the United States.

C. Ko, D. Bentrem, M. Talamonti, 2007, Surgery.

Extent of Surgery Affects Survival for Papillary Thyroid Cancer

C. Ko, D. Bentrem, M. Talamonti, 2007, Annals of surgery.

Toward robust information: data quality and inter-rater reliability in the American College of Surgeons National Surgical Quality Improvement Program.

C. Ko, J. Steeger, M. Shiloach, 2010, Journal of the American College of Surgeons.

Risk of discharge to postacute care: a patient-centered outcome for the american college of surgeons national surgical quality improvement program surgical risk calculator.

C. Ko, K. Bilimoria, Yaoming Liu, 2015, JAMA surgery.

Optimal Perioperative Management of the Geriatric Patient: A Best Practices Guideline from the American College of Surgeons NSQIP and the American Geriatrics Society.

C. Ko, M. Neuman, R. Rosenthal, 2016, Journal of the American College of Surgeons.

Evaluation of surveillance bias and the validity of the venous thromboembolism quality measure.

Jeanette W. Chung, C. Ko, D. Baker, 2013, JAMA.

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.

W. Chow, C. Ko, R. Rosenthal, 2012, Journal of the American College of Surgeons.

Evaluation of Postoperative Functional Health Status Decline Among Older Adults.

C. Ko, R. Rosenthal, Lindsey M. Zhang, 2020, JAMA surgery.

Negative appendectomy in pregnant women is associated with a substantial risk of fetal loss.

J. Hiatt, C. Ko, D. Zingmond, 2007, Journal of the American College of Surgeons.

Developing quality indicators for elderly patients undergoing abdominal operations.

P. Shekelle, L. Rubenstein, C. Ko, 2005, Journal of the American College of Surgeons.

Postoperative Delirium as a Target for Surgical Quality Improvement

E. Finlayson, C. Ko, T. Robinson, 2017, Annals of surgery.

Using the NCDB for cancer care improvement: An introduction to available quality assessment tools

C. Ko, D. Bentrem, K. Bilimoria, 2009, Journal of surgical oncology.

Concurrent bariatric operations and association with perioperative outcomes: registry based cohort study

C. Ko, Yaoming Liu, D. Hoyt, 2017, British Medical Journal.

Outcomes of Concurrent Operations: Results From the American College of Surgeons’ National Surgical Quality Improvement Program

C. Ko, Yaoming Liu, Mark E. Cohen, 2017, Annals of surgery.

Are high-volume surgeons and hospitals the most important predictors of in-hospital outcome for colon cancer resection?

C. Ko, G. Kominski, John T. Chang, 2002, Surgery.

A Comparison of Clinical Registry Versus Administrative Claims Data for Reporting of 30-Day Surgical Complications

Robert H Brook, R. Brook, E. Lawson, 2012, Annals of surgery.

Postoperative Complications Reduce Adjuvant Chemotherapy Use in Resectable Pancreatic Cancer

C. Ko, D. Bentrem, M. Talamonti, 2014, Annals of surgery.

Defining the Intrinsic Cardiac Risks of Operations to Improve Preoperative Cardiac Risk Assessments

C. Ko, Yaoming Liu, Mark E. Cohen, 2018, Anesthesiology.

National Failure to Operate on Early Stage Pancreatic Cancer

C. Ko, D. Bentrem, M. Talamonti, 2007, Annals of surgery.

Pediatric American College of Surgeons National Surgical Quality Improvement Program: feasibility of a novel, prospective assessment of surgical outcomes.

C. Ko, P. Dillon, K. Oldham, 2011, Journal of pediatric surgery.

Complete Lymph Node Dissection for Sentinel Node-Positive Melanoma: Assessment of Practice Patterns in the United States

C. Ko, D. Bentrem, M. Talamonti, 2008, Annals of Surgical Oncology.

Risk adjustment in the American College of Surgeons National Surgical Quality Improvement Program: a comparison of logistic versus hierarchical modeling.

C. Ko, K. Bilimoria, Mark E. Cohen, 2009, Journal of the American College of Surgeons.

Factors Associated with Colon Cancer Stage at Diagnosis

E. Ward, C. Ko, M. Halpern, 2008, Digestive Diseases and Sciences.

Optimal timeframe for reporting short-term complication rates after total knee arthroplasty.

C. Ko, D. Zingmond, J. Lieberman, 2006, The Journal of arthroplasty.

Optimizing ACS NSQIP modeling for evaluation of surgical quality and risk: patient risk adjustment, procedure mix adjustment, shrinkage adjustment, and surgical focus.

Justin B Dimick, W. Chow, C. Ko, 2013, Journal of the American College of Surgeons.

Blueprint for a new American College of Surgeons: National Surgical Quality Improvement Program.

David R Flum, Justin B Dimick, J. Birkmeyer, 2008, Journal of the American College of Surgeons.

Executive Summary of the American College of Surgeons/Surgical Infection Society Surgical Site Infection Guidelines-2016 Update.

E. P. Dellinger, K. Itani, C. Ko, 2017, Surgical infections.

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

Daniel B. Jones, C. Ko, B. Schirmer, 2011, Annals of surgery.

Primary duodenal adenocarcinoma: a 40-year experience.

C. Ko, H. Reber, O. Hines, 2000, Archives of surgery.

Small Bowel Cancer in the United States: Changes in Epidemiology, Treatment, and Survival Over the Last 20 Years

C. Ko, D. Bentrem, M. Talamonti, 2009, Annals of surgery.

Updated Population-Based Review of Carcinoid Tumors

C. Ko, M. Maggard, J. O'connell, 2004, Annals of surgery.

Laparoscopic-assisted vs. Open Colectomy for Cancer: Comparison of Short-term Outcomes from 121 Hospitals

Heidi Nelson, Ryan P. Merkow, Karl Y. Bilimoria, 2008, Journal of Gastrointestinal Surgery.

Quality improvement in surgery: the American College of Surgeons National Surgical Quality Improvement Program approach.

C. Ko, B. Hall, K. Richards, 2010, Advances in surgery.

Surgical technical evidence review for gynecologic surgery conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery

C. Ko, S. Dowdy, E. Wick, 2018, American journal of obstetrics and gynecology.

Identification of specific quality improvement opportunities for the elderly undergoing gastrointestinal surgery.

C. Ko, D. Bentrem, K. Bilimoria, 2009, Archives of surgery.

An Examination of American College of Surgeons NSQIP Surgical Risk Calculator Accuracy.

C. Ko, Yaoming Liu, Mark E. Cohen, 2017, Journal of the American College of Surgeons.

Evidence Review Conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery: Focus on Anesthesiology for Colorectal Surgery

Christopher L. Wu, C. Ko, M. Cannesson, 2018, Anesthesia and analgesia.

Evidence Review Conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery: Focus on Anesthesiology for Bariatric Surgery.

Christopher L. Wu, C. Ko, M. Cannesson, 2019, Anesthesia and analgesia.

Identification of Process Measures to Reduce Postoperative Readmission

M. Hawn, R. McLeod, Mark V. Williams, 2014, Journal of Gastrointestinal Surgery.

Hospital costs by cost center of inpatient hospitalization for medicare patients undergoing major abdominal surgery.

R. Brook, E. Lawson, C. Ko, 2015, Journal of the American College of Surgeons.

Feasibility of Enhanced Recovery in Emergency Colorectal Surgery.

C. Ko, Mark E. Cohen, E. Wick, 2020, Journal of the American College of Surgeons.

Small Bowel Surgery

C. Ko, B. Coventry, B. Waxman, 2014 .

Hospital variation in rates of concurrent fundoplication during gastrostomy enteral access procedures

C. Ko, Mark E. Cohen, B. Hall, 2018, Surgical Endoscopy.

Estimating Adverse Events After Gastrostomy Tube Placement.

C. Ko, Mark E. Cohen, B. Hall, 2016, Academic pediatrics.

Physician and practice characteristics influencing tumor board attendance: Results from the provider survey of the Los Angeles Women's Health Study.

K. Kahn, C. Ko, P. Ganz, 2009, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Demographic and Clinical Factors Related to Ostomy Complications and Quality of Life in Veterans With an Ostomy

C. Ko, J. Pittman, C. Schmidt, 2008, Journal of wound, ostomy, and continence nursing : official publication of The Wound, Ostomy and Continence Nurses Society.

Surgeon volume as a predictor of outcomes in inpatient and outpatient endocrine surgery.

C. Ko, P. Ituarte, M. Yeh, 2007, Surgery.

Beyond death and graft survival—Variation in outcomes after kidney transplantation. Results from the NSQIP Transplant beta phase

C. Ko, R. Hirose, Mark E. Cohen, 2019, American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.

Beyond death and graft survival—Variation in outcomes after liver transplant. Results from the NSQIP transplant beta phase

C. Ko, R. Hirose, Mark E. Cohen, 2019, American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.

Performance of the American College of Surgeons NSQIP Surgical Risk Calculator for Total Gastrectomy.

C. Ko, D. Coit, Sam S. Yoon, 2020, Journal of the American College of Surgeons.

Risk adjustment for comparing hospital quality with surgery: how many variables are needed?

Justin B Dimick, J. Birkmeyer, C. Ko, 2010, Journal of the American College of Surgeons.

Preventable readmissions to surgical services: lessons learned and targets for improvement.

Aaron J. Dawes, J. Hiatt, C. Ko, 2014, Journal of the American College of Surgeons.

Adherence to Enhanced Recovery Protocols in NSQIP and Association With Colectomy Outcomes

L. Feldman, C. Ko, Julia R Berian, 2017, Annals of surgery.

Same-day discharge is not associated with increased readmissions or complications after thyroid operations.

C. Ko, M. Yeh, M. Livhits, 2019, Surgery.

American College of Surgeons Guidelines Program: a process for using existing guidelines to generate best practice recommendations for central venous access.

C. Ko, J. Weigelt, G. Beilman, 2008, Journal of the American College of Surgeons.

Variation in intraoperative and postoperative red blood cell transfusion in pediatric surgery

C. Ko, Mark E. Cohen, B. Hall, 2016, Transfusion.

American College of Surgeons National Surgical Quality Improvement Program Pediatric: a phase 1 report.

C. Ko, P. Dillon, K. Oldham, 2011, Journal of the American College of Surgeons.

Risk-Adjusted Hospital Outcomes for Children’s Surgery

C. Ko, J. Meara, Mark E. Cohen, 2013, Pediatrics.

Risk-based Selective Referral for Cancer Surgery: A Potential Strategy to Improve Perioperative Outcomes

C. Ko, D. Bentrem, M. Talamonti, 2010, Annals of surgery.

Do Young Colon Cancer Patients Have Worse Outcomes?

E. Livingston, C. Ko, D. Etzioni, 2004, World Journal of Surgery.

Are Survival Rates Different for Young and Older Patients With Rectal Cancer?

C. Ko, D. Etzioni, Jerome H. Liu, 2003, Diseases of the colon and rectum.

A risk calculator predicting postoperative adverse events in neonates undergoing major abdominal or thoracic surgery.

C. Ko, Mark E. Cohen, B. Hall, 2014, Journal of pediatric surgery.

Comparison of outcomes after laparoscopic versus open appendectomy for acute appendicitis at 222 ACS NSQIP hospitals.

T. Esposito, C. Ko, K. Bilimoria, 2010, Surgery.

Effect of Postoperative Complications on Adjuvant Chemotherapy Use for Stage III Colon Cancer

Jeanette W. Chung, C. Ko, D. Bentrem, 2013, Annals of surgery.

What Proportion of Patients with an Ostomy (for Diverticulitis) Get Reversed?

C. Ko, D. Zingmond, M. Maggard, 2004, The American surgeon.

Association of an Enhanced Recovery Pilot With Length of Stay in the National Surgical Quality Improvement Program

L. Feldman, C. Ko, Julia R Berian, 2017, JAMA surgery.

Small bowel obstruction: a population-based appraisal.

C. Ko, D. Zingmond, M. McGory, 2006, Journal of the American College of Surgeons.

Multimodality therapy for pancreatic cancer in the U.S.

C. Ko, D. Bentrem, M. Talamonti, 2007, Cancer.

Assessment of pancreatic cancer care in the United States based on formally developed quality indicators.

K. Lillemoe, C. Ko, D. Bentrem, 2009, Journal of the National Cancer Institute.

Impact of Tumor Grade on Prognosis in Pancreatic Cancer: Should We Include Grade in AJCC Staging?

Nabil Wasif, Clifford Y. Ko, C. Ko, 2010, Annals of Surgical Oncology.

Invasive Lobular vs. Ductal Breast Cancer: A Stage-Matched Comparison of Outcomes

Nabil Wasif, Clifford Y. Ko, Melinda A. Maggard, 2010, Annals of Surgical Oncology.

Disparities in Surgical Access: A Systematic Literature Review, Conceptual Model, and Evidence Map.

C. Ko, J. Weissman, H. Burstin, 2019, Journal of the American College of Surgeons.

Featured Articles for CME Credit November 2017

P. Reilly, C. Ko, K. Bilimoria, 2017, The journal of trauma and acute care surgery.

Pancreatectomy risk calculator: an ACS-NSQIP resource.

H. Pitt, C. Ko, K. Bilimoria, 2010, HPB : the official journal of the International Hepato Pancreato Biliary Association.

Do young breast cancer patients have worse outcomes?

C. Ko, D. Etzioni, Jerome H. Liu, 2003, The Journal of surgical research.

Comparison of sentinel lymph node biopsy alone and completion axillary lymph node dissection for node-positive breast cancer.

A. Rademaker, N. Hansen, C. Ko, 2009, Journal of Clinical Oncology.

Patterns of care among patients undergoing hepatic resection: a query of the National Surgical Quality Improvement Program-targeted hepatectomy database.

A. Ejaz, G. Spolverato, Yuhree Kim, 2015, The Journal of surgical research.

Reliability Adjustment for Reporting Hospital Outcomes With Surgery

C. Ko, J. Dimick, B. Hall, 2012, Annals of surgery.

Use of sentinel lymph node biopsy for melanoma in children and adolescents

C. Ko, D. Bentrem, K. Bilimoria, 2010, Journal of surgical oncology.

Rare tumors of the colon and rectum: a national review

C. Ko, M. Maggard, J. O'connell, 2006, International Journal of Colorectal Disease.

New developments in geriatric surgery.

M. Makary, W. Chow, C. Ko, 2011, Current problems in surgery.

Directing surgical quality improvement initiatives: comparison of perioperative mortality and long-term survival for cancer surgery.

J. Feinglass, C. Ko, D. Bentrem, 2008, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Readmissions Following Pancreaticoduodenectomy for Pancreas Cancer: A Population-Based Appraisal

I. Yermilov, C. Ko, D. Bentrem, 2009, Annals of Surgical Oncology.

A NSQIP‐based randomized clinical trial evaluating choice of prophylactic antibiotics for pancreaticoduodenectomy

C. Ko, B. Brajcich, R. Ellis, 2021, Journal of surgical oncology.

Underuse of axillary dissection for the management of sentinel node micrometastases in breast cancer.

A. Giuliano, C. Ko, M. Maggard, 2010, Archives of surgery.

Effect of hospital volume on margin status after pancreaticoduodenectomy for cancer.

C. Ko, D. Bentrem, M. Talamonti, 2008, Journal of the American College of Surgeons.

Prognostic Score Predicting Survival After Resection of Pancreatic Neuroendocrine Tumors: Analysis of 3851 Patients

C. Ko, D. Bentrem, M. Talamonti, 2008, Annals of surgery.

Use and outcomes of laparoscopic-assisted colectomy for cancer in the United States.

H. Nelson, S. Stryker, C. Ko, 2008, Archives of surgery.

Accuracy of staging node-negative pancreas cancer: a potential quality measure.

C. Ko, D. Bentrem, J. Tomlinson, 2007, Archives of surgery.

Development of the Flexibility in Duty Hour Requirements for Surgical Trainees (FIRST) Trial Protocol: A National Cluster-Randomized Trial of Resident Duty Hour Policies.

Jeanette W. Chung, L. Hedges, C. Ko, 2016, JAMA surgery.

National Cluster-Randomized Trial of Duty-Hour Flexibility in Surgical Training.

Jeanette W. Chung, L. Hedges, F. Lewis, 2016, The New England journal of medicine.

American College of Surgeons' Guidelines for the Perioperative Management of Antithrombotic Medication.

C. Ko, E. Jensen, Dieter Pohl, 2018, Journal of the American College of Surgeons.

National Assessment of Margin Status as a Quality Indicator after Pancreatic Cancer Surgery

H. Pitt, T. Pawlik, C. Ko, 2014, Annals of Surgical Oncology.

The increasing workload of general surgery.

C. Ko, D. Etzioni, Jerome H. Liu, 2004, Archives of surgery.

Clinical registries and quality measurement in surgery: a systematic review.

Aaron J. Dawes, C. Ko, G. Sacks, 2015, Surgery.

The significance of inadvertent splenectomy during colorectal cancer resection.

C. Ko, D. Zingmond, E. Sekeris, 2007, Archives of surgery.

Are procedures codes in claims data a reliable indicator of intraoperative splenic injury compared with clinical registry data?

E. Lawson, C. Ko, D. Zingmond, 2014, Journal of the American College of Surgeons.

Association of surgical care improvement project infection-related process measure compliance with risk-adjusted outcomes: implications for quality measurement.

Lee A Fleisher, Justin B Dimick, L. Fleisher, 2010, Journal of the American College of Surgeons.

Influence of Intestinal Stoma on Spiritual Quality of Life of U.S. Veterans

C. Ko, C. Baldwin, C. Schmidt, 2008, Journal of holistic nursing : official journal of the American Holistic Nurses' Association.

What is the Rate of Small Bowel Obstruction after Colectomy?

C. Ko, D. Zingmond, M. Maggard, 2008, The American surgeon.

Colorectal cancer: epidemiology and health services research.

C. Ko, J. O'connell, L. Hill, 2006, Surgical oncology clinics of North America.

Do racial/ethnic disparities exist in the utilization of high-volume surgeons for women with ovarian cancer?

C. Ko, D. Zingmond, M. Maggard, 2008, Gynecologic oncology.

Hospitalization before and after gastric bypass surgery.

C. Ko, D. Zingmond, M. McGory, 2005, JAMA.

Making it happen: engaging the power of many in translating research into practice

C. Ko, L. Kao, 2023, BMJ Quality & Safety.

Reporting Randomized, Controlled Trials

C. Ko, A. Fink, John T. Chang, 2002, Diseases of the colon and rectum.

Optimal preoperative assessment of the geriatric patient

William H. Ward, W. Chow, C. Ko, 2017 .

Methods and Limitations

C. Ko, M. Maggard, M. McGory, 2017 .

Application of the pancreatic adenocarcinoma staging system to pancreatic neuroendocrine tumors.

C. Ko, D. Bentrem, M. Talamonti, 2007, Journal of the American College of Surgeons.

Achieving high-quality surgical care: observations from the American College of Surgeons Quality of Care Programs.

C. Ko, J. Paruch, D. Hoyt, 2015, Annals of surgery.

The role of Surgical Champions in the American College of Surgeons National Surgical Quality Improvement Program--a national survey.

Mark K Eskandari, C. Ko, D. Bentrem, 2011, The Journal of surgical research.

Comparison of Outlier Identification Methods in Hospital Surgical Quality Improvement Programs

C. Ko, D. Bentrem, K. Bilimoria, 2010, Journal of Gastrointestinal Surgery.

Quality of care.

C. Ko, J. O'connell, 2006 .

Quality in Surgery: Current Issues for the Future

C. Ko, M. Maggard, Michelle Agustin, 2005, World journal of surgery.

Society of University Surgeons position statement on the volume-outcome relationship for surgical procedures.

David A Spain, D. Spain, C. Ko, 2003, Surgery.

Effect of diabetes and hypertension on obesity-related mortality.

Edward H Livingston, E. Livingston, C. Ko, 2005, Surgery.

Defining Quality of Care in Geriatric Surgery

C. Ko, M. McGory, H. Kunitake, 2011 .

Socioeconomic characteristics of the population eligible for obesity surgery.

E. Livingston, C. Ko, 2004, Surgery.

Surviving colorectal cancer

K. Kahn, C. Ko, A. Epstein, 2007, Cancer.

The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program bariatric surgical risk/benefit calculator: 30-day risk.

C. Ko, Mark E. Cohen, B. Hall, 2021, Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery.

Measuring the Quality of Colorectal Cancer Screening: The Importance of Follow-Up

Lisa V Rubenstein, Robert H Brook, E. Yano, 2006, Diseases of the colon and rectum.

Understanding cancer patients’ experience and outcomes: development and pilot study of the Cancer Care Outcomes Research and Surveillance patient survey

K. Kahn, A. Zaslavsky, P. Catalano, 2006, Supportive Care in Cancer.

Variation in Hospital Use of Postacute Care After Surgery and the Association With Care Quality

Robert E Weiss, Aaron J. Dawes, Robert H Brook, 2016, Medical care.

A 10-Year Outcomes Evaluation of Mucinous and Signet-Ring Cell Carcinoma of the Colon and Rectum

C. Ko, M. Maggard, J. O'connell, 2005, Diseases of the colon and rectum.

Does weight loss immediately before bariatric surgery improve outcomes: a systematic review.

I. Yermilov, C. Ko, E. Dutson, 2009, Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery.

Evaluation of hospital readmissions in surgical patients: do administrative data tell the real story?

Aaron J. Dawes, J. Hiatt, C. Ko, 2014, JAMA surgery.

Influence of lymph node metastases on survival in pediatric medullary thyroid cancer.

C. Ko, D. Bentrem, A. Stewart, 2010, Journal of pediatric surgery.

Cefoxitin versus piperacillin–tazobactam as surgical antibiotic prophylaxis in patients undergoing pancreatoduodenectomy: protocol for a randomised controlled trial

H. Pitt, C. Ko, M. D'Angelica, 2021, BMJ Open.

Surgeons’ Volume of Colorectal Cancer Procedures and Collaborative Decision-Making About Adjuvant Therapies

K. Kahn, A. Zaslavsky, N. Keating, 2009, Annals of surgery.

Has survival improved for nasopharyngeal carcinoma in the United States?

C. Ko, Jivianne T. Lee, 2003, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

Development and Evaluation of the American College of Surgeons NSQIP Pediatric Surgical Risk Calculator.

C. Ko, K. Bilimoria, Yaoming Liu, 2016, Journal of the American College of Surgeons.

Preoperative Predictors of Weight Loss Following Bariatric Surgery: Systematic Review

I. Yermilov, C. Ko, E. Dutson, 2011, Obesity Surgery.

The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program Bariatric Surgical Risk/Benefit Calculator: 1-year weight.

C. Ko, Mark E. Cohen, B. Hall, 2022, Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery.

Use of Multimodality Neoadjuvant Therapy for Esophageal Cancer in the United States: Assessment of 987 Hospitals

M. McCarter, W. Chow, C. Ko, 2012, Annals of Surgical Oncology.

Quality of life and symptoms in long-term survivors of colorectal cancer: results from NSABP protocol LTS-01

D. Wickerham, C. Ko, P. Ganz, 2017, Journal of Cancer Survivorship.

Quality Improvement Pilot Program for Vulnerable Elderly Surgical Patients

C. Ko, David C. Chen, M. Gibbons, 2011, The American surgeon.

Behavioral Factors Associated with Successful Weight Loss after Gastric Bypass

I. Yermilov, C. Ko, E. Dutson, 2010, The American surgeon.

P-46: Is binge eating disorder associated with the degree of weight loss following bariatric surgery?

I. Yermilov, C. Ko, J. Parikh, 2010 .

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)

B. Wolfe, C. Ko, N. Nguyen, 2016, Annals of surgery.

Injected liquid silicone, chronic mastitis, and undetected breast cancer.

C. Ko, C. Ahn, B. Markowitz, 1995, Annals of plastic surgery.

How Widely Has ACS-NSQIP Disseminated? A Market Share Analysis In The National Medicare Population

C. Ko, J. Dimick, N. Osborne, 2011 .

Evaluating A New Technique For Improving The Reliability Of Surgical Outcomes Measurement

C. Ko, J. Dimick, A. Ghaferi, 2011 .

The Quality In-Training Initiative: Giving Residents Data to Learn Clinical Effectiveness.

C. Ko, R. Kelz, M. Sellers, 2017, Journal of surgical education.

The ACS NSQIp quality in-training initiative: educating residents to ensure the future of optimal surgical care.

C. Ko, J. Sakran, R. Kelz, 2013, Bulletin of the American College of Surgeons.

The unmet need for a national surgical quality improvement curriculum: a systematic review.

C. Ko, R. Kelz, M. Sellers, 2014, Journal of surgical education.

Workload Projections for Surgical Oncology: Will We Need More Surgeons?

C. Ko, D. Etzioni, Jerome H. Liu, 2003, Annals of Surgical Oncology.

Nationwide Assessment of Trends in Choledocholithiasis Management in the United States From 1998 to 2013.

C. Ko, K. Bilimoria, A. Nathens, 2016, JAMA surgery.

Surgical site infection prevention: the importance of operative duration and blood transfusion--results of the first American College of Surgeons-National Surgical Quality Improvement Program Best Practices Initiative.

L. Neumayer, K. Itani, C. Ko, 2008, Journal of the American College of Surgeons.

Predictors for medical students entering a general surgery residency: National survey results.

Cassandra M. Guarino, J. Escarce, C. Ko, 2004, Surgery.

Impact of Hepatectomy Surgical Complexity on Outcomes and Hospital Quality Rankings

C. Ko, D. Bentrem, K. Bilimoria, 2014, Annals of Surgical Oncology.

Characterizing Surgical Site Infection Signals in Clinical Notes

Zhen Hu, György J. Simon, Genevieve B. Melton, 2018, MedInfo.

Variation in quality of care after emergency general surgery procedures in the elderly.

C. Ko, A. Nathens, Mark E. Cohen, 2011, Journal of the American College of Surgeons.

Coping and acceptance: the greatest challenge for veterans with intestinal stomas.

C. Ko, S. Coons, R. McCorkle, 2009, Journal of psychosomatic research.

A Mixed-Methods Evaluation of Health-Related Quality of Life for Male Veterans with and without Intestinal Stomas

C. Ko, S. Coons, R. McCorkle, 2007, Diseases of the colon and rectum.

Disparities in the utilization of high-volume hospitals for complex surgery.

R. Brook, C. Ko, S. Ettner, 2006, JAMA.

Patient behaviors associated with weight regain after laparoscopic gastric bypass.

I. Yermilov, C. Ko, E. Dutson, 2011, Obesity research & clinical practice.

Lymph node evaluation as a colon cancer quality measure: a national hospital report card.

C. Ko, D. Bentrem, M. Talamonti, 2008, Journal of the National Cancer Institute.

Evaluation of Initial Participation in Public Reporting of ACS NSQIP Surgical Outcomes on Medicare’s Hospital Compare Website

Jeanette W. Chung, M. Makary, C. Ko, 2013, Journal of the American College of Surgeons.

Reporting Randomized, Controlled Trials: Where Quality of Reporting May Be Improved

C. Ko, A. Fink, John T. Chang, 2002 .

Comparison of hospital performance in trauma vs emergency and elective general surgery: implications for acute care surgery quality improvement.

C. Ko, B. Haas, A. Nathens, 2012, Archives of surgery.

Effect of wound classification on risk adjustment in American College of Surgeons NSQIP.

E. P. Dellinger, C. Ko, K. Bilimoria, 2014, Journal of the American College of Surgeons.

Evidence-based medicine in surgery: the importance of both experimental and observational study designs.

C. Ko, R. Merkow, 2011, JAMA.

Variation in Physician-patient Discussion of Breast Reconstruction

K. Kahn, C. Ko, P. Ganz, 2008, Journal of General Internal Medicine.

Cancer Survivorship Issues in Colorectal Cancer

C. Ko, P. Ganz, 2007 .

The VA Ostomy Health-Related Quality of Life Study: objectives, methods, and patient sample

C. Ko, R. McCorkle, C. Baldwin, 2006, Current medical research and opinion.

Adequacy and importance of lymph node evaluation for colon cancer in the elderly.

C. Ko, D. Bentrem, M. Talamonti, 2008, Journal of the American College of Surgeons.

Colorectal cancer: epidemiology, risk factors, and health services.

C. Ko, F. Amersi, Clifford Y Ko, 2005, Clinics in colon and rectal surgery.

Comparison of commission on cancer-approved and -nonapproved hospitals in the United States: implications for studies that use the National Cancer Data Base.

C. Ko, D. Bentrem, K. Bilimoria, 2009, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

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.

R. Beart, N. Wolmark, C. Ko, 2015, Annals of surgery.

Compliance With Evidence-Based Guidelines and Interhospital Variation in Mortality for Patients With Severe Traumatic Brain Injury.

Aaron J. Dawes, D. McArthur, C. Ko, 2015, JAMA surgery.

Consensus recommendations on how to assess the quality of surgical interventions

T. Pawlik, J. Barkun, J. Chiche, 2023, Nature Medicine.

Impact of a Risk Calculator on Risk Perception and Surgical Decision Making: A Randomized Trial

Aaron J. Dawes, R. Brook, C. Fox, 2016, Annals of surgery.

The surgeon's role in the quality of oncologic care.

I. Yermilov, C. Ko, J. Tomlinson, 2007, Journal of the National Comprehensive Cancer Network : JNCCN.

Outcomes and Prognostic Factors for Squamous-Cell Carcinoma of the Anal Canal: Analysis of Patients From the National Cancer Data Base

C. Ko, D. Bentrem, K. Bilimoria, 2009, Diseases of the colon and rectum.

Squamous Cell Carcinoma of the Anal Canal: Utilization and Outcomes of Recommended Treatment in the United States

C. Ko, D. Bentrem, M. Talamonti, 2008, Annals of Surgical Oncology.

A population‐based study of colorectal cancer test use

C. Ko, C. Klabunde, N. Ponce, 2004, Cancer.

Risk factors for superficial vs deep/organ-space surgical site infections: implications for quality improvement initiatives.

E. Lawson, C. Ko, B. Hall, 2013, JAMA surgery.

Improving American College of Surgeons National Surgical Quality Improvement Program risk adjustment: incorporation of a novel procedure risk score.

C. Ko, B. Hamilton, Mark E. Cohen, 2010, Journal of the American College of Surgeons.

Effect of post-discharge venous thromboembolism on hospital quality comparisons following hip and knee arthroplasty.

Benjamin S. Kester, C. Ko, D. Bentrem, 2014, The Journal of bone and joint surgery. American volume.

Improving the quality of surgical care: The American College of Surgeons National Surgical Quality Improvement Program.

C. Ko, R. Ellis, 2017, Revista de calidad asistencial : organo de la Sociedad Espanola de Calidad Asistencial.

Defining the risk of liver failure after minor hepatectomy: a NSQIP analysis of 7029 patients.

C. Ko, M. D'Angelica, Yaoming Liu, 2020, HPB : the official journal of the International Hepato Pancreato Biliary Association.

A report card on outcomes for surgically treated cancers: are we improving?

C. Ko, D. Etzioni, Jerome H. Liu, 2003 .

Relationship Between Hospital Performance on a Patient Satisfaction Survey and Surgical Quality.

Aaron J. Dawes, E. Lawson, C. Ko, 2015, JAMA surgery.

American Society of Clinical Oncology/National Comprehensive Cancer Network Quality Measures.

Katherine L Kahn, Deborah Schrag, Andrew K Stewart, 2008, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Impact of Tumor Location on Nodal Evaluation for Colon Cancer

C. Ko, D. Bentrem, M. Talamonti, 2008, Diseases of the colon and rectum.

Inpatient surgery in California: 1990-2000.

C. Ko, D. Etzioni, Jerome H. Liu, 2003, Archives of surgery.

Association of Surgical Resident Wellness With Medical Errors and Patient Outcomes

J. Moskowitz, E. Cheung, C. Ko, 2020, Annals of surgery.

Effect of hospital type and volume on lymph node evaluation for gastric and pancreatic cancer.

C. Ko, D. Bentrem, M. Talamonti, 2008, Archives of surgery.

Patient-reported outcomes in surgery: Listening to patients improves quality of care.

C. Ko, L. Temple, A. Pusic, 2017, Bulletin of the American College of Surgeons.

Resuming Elective Surgery during Covid-19: Can Inpatient Hospitals Collaborate with Ambulatory Surgery Centers?

R. Brook, C. Ko, K. Chung, 2021, Plastic and reconstructive surgery. Global open.

Assessing the relative contribution of individual risk factors on surgical outcome for gastric bypass surgery: a baseline probability analysis.

E. Livingston, C. Ko, 2002, The Journal of surgical research.

Which Patients Require More Care after Hospital Discharge? An Analysis of Post-Acute Care Use among Elderly Patients Undergoing Elective Surgery.

Aaron J. Dawes, E. Lawson, C. Ko, 2015, Journal of the American College of Surgeons.

Health Care Measurements that Improve Patient Outcomes

C. Ko, A. Pusic, L. Jehi, 2021 .

Surgical quality— what have we done and where are we going?

C. Ko, Lindsey M. Zhang, Meixi Ma, 2020 .

Linkage of a clinical surgical registry with Medicare inpatient claims data using indirect identifiers.

E. Lawson, C. Ko, L. Han, 2013, Surgery.

Development of quality indicators for patients undergoing colorectal cancer surgery.

P. Shekelle, C. Ko, M. McGory, 2006, Journal of the National Cancer Institute.

Optimizing Surgical Quality Datasets to Care for Older Adults: Lessons from the American College of Surgeons NSQIP Geriatric Surgery Pilot.

E. Finlayson, C. Ko, T. Robinson, 2017, Journal of the American College of Surgeons.

Utilization of Parenteral Nutrition Following Pancreaticoduodenectomy: Is Routine Jejunostomy Tube Placement Warranted?

I. Yermilov, C. Ko, D. Bentrem, 2009, Digestive Diseases and Sciences.

Association Between Occurrence of a Postoperative Complication and Readmission: Implications for Quality Improvement and Cost Savings

Susan L Ettner, E. Lawson, C. Ko, 2013, Annals of surgery.

Variation in Hospital Utilization of Minimally Invasive Distal Pancreatectomy for Localized Pancreatic Neoplasms

C. Ko, D. Bentrem, M. Talamonti, 2019, Journal of Gastrointestinal Surgery.

Validation study of the ACS NSQIP surgical risk calculator for two procedures in Japan.

I. Endo, S. Marubashi, C. Ko, 2021, American journal of surgery.

Intracranial pressure monitoring and inpatient mortality in severe traumatic brain injury: A propensity score–matched analysis

Aaron J. Dawes, D. McArthur, C. Ko, 2015, The journal of trauma and acute care surgery.

A Comprehensive Evaluation of Statistical Reliability in ACS NSQIP Profiling Models.

C. Ko, Mark E. Cohen, B. Hall, 2015, Annals of surgery.

Does Comanagement of Patients With Hip Fracture Influence 30-Day Outcomes

C. Ko, S. Kates, Mark E. Cohen, 2020, Geriatric orthopaedic surgery & rehabilitation.

Missing data in the American College of Surgeons National Surgical Quality Improvement Program are not missing at random: implications and potential impact on quality assessments.

C. Ko, B. Hamilton, B. Hall, 2010, Journal of the American College of Surgeons.

Primary total knee arthroplasty in California 1991 to 2001: does hospital volume affect outcomes?

C. Ko, D. Zingmond, J. Lieberman, 2006, The Journal of arthroplasty.

Laparoscopic Nissen Fundoplication Improves Quality of Life in Patients with Atypical Symptoms of Gastroesophageal Reflux

C. Ko, M. Maggard, O. Hines, 2003, The American surgeon.

Post Hepatectomy Liver Failure Risk Calculator for Preoperative and Early Postoperative Period Following Major Hepatectomy

T. Pawlik, C. Ko, D. Bentrem, 2020, Annals of Surgical Oncology.

Relevance of the c-statistic when evaluating risk-adjustment models in surgery.

W. Chow, C. Ko, E. Wang, 2012, Journal of the American College of Surgeons.

Assessing the Quality of Rectal Cancer Pathology Reports in National Surgical Adjuvant Breast and Bowel Project Protocol R-04/NRG Oncology

R. Beart, C. Ko, P. Ganz, 2020, Diseases of the colon and rectum.

Comparative effectiveness of sphincter-sparing surgery (SSS) versus abdomino-perineal resection (APR) in rectal cancer: Patient-reported outcomes (PROs) from NSABP R-04.

N. Wolmark, C. Ko, P. Ganz, 2012 .

Application of the RAND‐UCLA Appropriateness Methodology to a Large Multidisciplinary Stakeholder Group Evaluating the Validity and Feasibility of Patient‐Centered Standards in Geriatric Surgery

E. Finlayson, C. Ko, M. Katlic, 2018, Health services research.

Quality of pancreatic cancer care at Veterans Administration compared with non-Veterans Administration hospitals.

C. Ko, D. Bentrem, M. Talamonti, 2007, American journal of surgery.

Patients With Temporary Ostomies: Veterans Administration Hospitals Multi-institutional Retrospective Study

D. Haggstrom, C. Ko, C. Schmidt, 2018, Journal of wound, ostomy, and continence nursing : official publication of The Wound, Ostomy and Continence Nurses Society.

Hospital Standards to Promote Optimal Surgical Care of the Older Adult: A Report From the Coalition for Quality in Geriatric Surgery

E. Finlayson, C. Ko, M. Katlic, 2018, Annals of surgery.

Is High BMI Associated with Specific Complications after Laparoscopic Roux-en-Y Gastric Bypass?

I. Yermilov, C. Ko, M. Maggard, 2007, The American surgeon.

Hospital-level Variation in Secondary Complications After Surgery

S. Lipsitz, M. Zinner, C. Ko, 2016, Annals of surgery.

An Opportunity to Improve Informed Consent and Shared Decision Making: The Role of the ACS NSQIP Surgical Risk Calculator in Oncology

C. Ko, K. Bilimoria, J. Paruch, 2013, Annals of Surgical Oncology.

Combining Surgical Outcomes and Patient Experiences to Evaluate Hospital Gastrointestinal Cancer Surgery Quality

C. Ko, L. Temple, A. Pusic, 2018, Journal of Gastrointestinal Surgery.

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

C. Mangione, C. Ko, J. Needleman, 2018, Health services research.

Sample size calculations in surgery: are they done correctly?

C. Ko, D. Etzioni, Jerome H. Liu, 2003, Surgery.

Trends, patterns, and outcomes in the management of malignant colonic polyps in the general population of the United States

C. Ko, J. Tomlinson, D. Etzioni, 2011, Cancer.

Critically Reviewing the Literature for Improving Clinical Practice

R. McLeod, C. Ko, 2007 .

Disparities in Rectal Cancer: Moving from Descriptions to Solutions

C. Ko, Jason B Liu, 2017, Annals of Surgical Oncology.

Variation in lymph node examination after esophagectomy for cancer in the United States.

W. Chow, C. Ko, M. Weyant, 2012, Archives of surgery.

Stapled Hemorrhoidectomy: A Review of Our Early Experience

C. Ko, M. Stamos, T. Arnell, 2003, The American surgeon.

Comparison of National Operative Mortality in Gastroenterological Surgery Using Web-based Prospective Data Entry Systems

H. Miyata, G. Wakabayashi, C. Ko, 2015, Medicine.

The New England colorectal cancer quality project: a prospective multi-institutional feasibility study.

N. Hyman, P. Cataldo, C. Ko, 2006, Journal of the American College of Surgeons.

How Well Is Surgical Improvement Being Conducted? Evaluation of 50 Local Surgery-Related Improvement Efforts.

C. Ko, Catherine Grant, Heidi Nelson, 2022, Journal of the American College of Surgeons.

Diminishing Disparities: Starting in Our Own Backyards

C. Ko, J. Ryoo, Sushma Jain, 2007, Annals of Surgical Oncology.

Utilization of Total Thyroidectomy for Differentiated Thyroid Cancer in Children

C. Ko, D. Bentrem, A. Stewart, 2010, Annals of Surgical Oncology.

Postoperative Complications and Hospital Payment: Implications for Achieving Value.

C. Ko, K. Bilimoria, Mark E. Cohen, 2016, Journal of the American College of Surgeons.

Quality of Care Issues in Colorectal Cancer

C. Ko, M. McGory, M. Leonardi, 2007, Clinical Cancer Research.

Use of the health and activities limitation index as a measure of quality of life in obesity.

E. Livingston, C. Ko, 2002, Obesity research.

Quality indicators in bariatric surgery: improving quality of care.

P. Shekelle, C. Ko, M. Maggard, 2006, Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery.

Risk of Surgery Following Recent Myocardial Infarction

C. Ko, D. Zingmond, C. D. de Virgilio, 2011, Annals of surgery.

The impact of continuous Medicaid enrollment on diagnosis, treatment, and survival in six surgical cancers.

Aaron J. Dawes, C. Ko, S. Ettner, 2014, Health services research.

Title Cancer survivorship research : the challenge of recruiting adult long term cancer survivors from a cooperative clinical trials group Permalink

D. Wickerham, N. Wolmark, C. Ko, 2009 .

CHAPTER 89 – THE MANAGEMENT OF HEMORRHAGE DURING PELVIC SURGERY

C. Ko, M. Corman, 2005 .

Evidence Review for the American College of Surgeons Quality Verification Part I: Building Quality and Safety Resources and Infrastructure.

C. Ko, D. Hoyt, Chelsea P. Fischer, 2020, Journal of the American College of Surgeons.

The past, present and future of ACS NSQIP-Pediatric: Evolution from a quality registry to a comparative quality performance platform.

A. Allori, C. Ko, Mark E. Cohen, 2023, Seminars in pediatric surgery.

The Randomized Registry Trial: Two Birds, One Stone.

C. Ko, M. D'Angelica, Jason B Liu, 2017, Annals of surgery.

Are Kids More Than Just Little Adults? A Comparison of Surgical Outcomes.

C. Ko, K. Bilimoria, Yue-Yung Hu, 2022, The Journal of surgical research.

Title Which patients require more care after hospital discharge ? an analysis of post-acute care use among elderly patients undergoing elective surgery

Aaron J. Dawes, E. Lawson, C. Ko, 2022 .

Consistency of pressure injury documentation across interfacility transfers

C. Mangione, C. Ko, P. Romano, 2017, BMJ Quality & Safety.

APDS panel session IV: intersection of surgical outcomes and medical education.

S. Ashley, J. Cofer, C. Ko, 2012, Journal of surgical education.

Continuity of care: Readmission to the same hospital following gastric cancer resection

C. Ko, D. Zingmond, M. Gibbons, 2009 .

Incidence and Relative Burden of Surgical Site Infections in Children Undergoing Nonemergent Surgery

C. Ko, Mark E. Cohen, M. Hall, 2022 .

Effect of including cancer‐specific variables on models examining short‐term outcomes

C. Ko, D. Bentrem, K. Bilimoria, 2013, Cancer.

The American College of Surgeons Colon Surgery Short-Term Composite Outcome Measure: An Objective, Feasible, and Reliable Tool for Hospital Quality Improvement

W. Chow, C. Ko, B. Hall, 2012 .

New approaches to the National Surgical Quality Improvement Program: the American College of Surgeons experience.

C. Ko, B. Hall, K. Richards, 2009, American journal of surgery.

A Patient's Race/Ethnicity Does Not Explain the Underuse of Appropriate Adjuvant Therapy in Colorectal Cancer

C. Ko, D. Zingmond, R. Bastani, 2006, Diseases of the colon and rectum.

Considerations in Releasing Equations for the American College of Surgeons NSQIP Surgical Risk Calculator: In Reply to Wanderer and Ehrenfeld.

C. Ko, K. Bilimoria, Yaoming Liu, 2016, Journal of the American College of Surgeons.

Quality of care in surgical oncology.

C. Ko, J. Tomlinson, Sierra R Matula, 2009, Cancer control : journal of the Moffitt Cancer Center.

Association Between Hospital Imaging Use and Venous Thromboembolism Events Rates Based on Clinical Data

C. Ko, D. Bentrem, D. Mahvi, 2014, Annals of surgery.

The impact of adjusting for reliability on hospital quality rankings in vascular surgery.

C. Ko, J. Dimick, G. Upchurch, 2011, Journal of vascular surgery.

Association of Patient-reported Experiences and Surgical Outcomes Among Group Practices: Retrospective Cohort Study.

C. Ko, L. Temple, A. Pusic, 2020, Annals of surgery.

Differences in Patients, Surgical Complexity, and Outcomes After Cancer Surgery at National Cancer Institute-designated Cancer Centers Compared to Other Hospitals

C. Ko, D. Bentrem, K. Bilimoria, 2013, Medical care.

A case for improving measurement of intraoperative iatrogenic injuries.

C. Ko, K. Bilimoria, J. Paruch, 2014, JAMA surgery.

Improving safety and quality of care with enhanced teamwork through operating room briefings.

M. Rosen, C. Ko, D. Hobson, 2014, JAMA surgery.

Why Do Breast Cancer Mortality Rates Vary across States?

C. Ko, M. Maggard, Jesse E. Thompson, 2003, The American surgeon.

Publicly available hospital comparison web sites: determination of useful, valid, and appropriate information for comparing surgical quality.

C. Ko, Clifford Y Ko, Marcia L McGory, 2007, Archives of surgery.

Surgeon and Hospital Characteristics as Predictors of Major Adverse Outcomes Following Colon Cancer Surgery—Invited Critique

C. Ko, M. McGory, 2007 .

Overcoming challenges: life with an ostomy.

C. Ko, C. Baldwin, M. J. Mohler, 2010, American journal of surgery.

Effect of Postdischarge Morbidity and Mortality on Comparisons of Hospital Surgical Quality

C. Ko, D. Bentrem, K. Bilimoria, 2010, Annals of surgery.

Effect of cancer surgery complexity on short-term outcomes, risk predictions, and hospital comparisons.

C. Ko, D. Bentrem, K. Bilimoria, 2013, Journal of the American College of Surgeons.

Accelerating Surgical Site Infection Abstraction With a Semi-automated Machine-learning Approach

György J. Simon, Steven J. Skube, C. Ko, 2020, Annals of surgery.

The American College of Surgeons National Surgical Quality Improvement Program: achieving better and safer surgery.

David B Hoyt, C. Ko, Mark E. Cohen, 2015, Joint Commission journal on quality and patient safety.

How to Measure the Quality of Surgery-Related Web Sites

M. Makary, I. Yermilov, W. Chow, 2008, The American surgeon.

Sustained culture and surgical outcome improvement.

C. Ko, E. Mauer, F. Michelassi, 2018, American journal of surgery.

Piperacillin-Tazobactam Compared With Cefoxitin as Antimicrobial Prophylaxis for Pancreatoduodenectomy: A Randomized Clinical Trial.

H. Pitt, M. Gönen, S. Seo, 2023, JAMA.

Profiling Individual Surgeon Performance Using Information from a High-Quality Clinical Registry: Opportunities and Limitations.

C. Ko, B. Hamilton, J. Paruch, 2015, Journal of the American College of Surgeons.

Effect of histologic subtype on treatment and outcomes for esophageal cancer in the United States

M. McCarter, W. Chow, C. Ko, 2012, Cancer.

Sustaining quality improvement during data lag: A qualitative study in a perioperative setting

C. Holzmueller, P. Pronovost, C. Ko, 2015 .

Three Observations for Improving Efforts in Surgical Quality Improvement.

M. Dixon-Woods, C. Ko, G. Martin, 2022, JAMA surgery.

Reply to Letter: "Ability to Prevent Death as a Sequelae of Morbidity May Be an Additional Indicator of Hospital Quality".

C. Ko, B. Hall, R. Merkow, 2015, Annals of surgery.

A report card on outcomes for surgically treated gastrointestinal cancers: are we improving?

C. Ko, D. Etzioni, Jerome H. Liu, 2004, The Journal of surgical research.

Providing Surgical Care to an Aging Population: Implications for the Surgical Workforce

C. Ko, D. Etzioni, 2011 .

Postoperative Complications and Hospital Payment: Implications for Achieving Value.

C. Ko, K. Bilimoria, Mark E. Cohen, 2016, Journal of the American College of Surgeons.

Reliability of the American College of Surgeons Commission on Cancer's Quality of Care Measures for Hospital and Surgeon Profiling.

C. Ko, D. Winchester, L. Shulman, 2017, Journal of the American College of Surgeons.

Appropriateness Criteria for Bariatric Surgery: Beyond the NIH Guidelines

I. Yermilov, C. Ko, M. Maggard, 2009, Obesity.

Creating Individual Surgeon Performance Assessments in a Statewide Hospital Surgical Quality Improvement Collaborative.

C. Ko, K. Bilimoria, Mark E. Cohen, 2018, Journal of the American College of Surgeons.

Surgical Technical Evidence Review for Acute Appendectomy Conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery.

C. Ko, E. Wick, Melissa A Hornor, 2018, Journal of the American College of Surgeons.

Cancer survivorship research: the challenge of recruiting adult long term cancer survivors from a cooperative clinical trials group

D. Wickerham, N. Wolmark, C. Ko, 2009, Journal of cancer survivorship : research and practice.

The Association of Frailty With Outcomes for Older Adults Undergoing Appendectomy

C. Ko, M. Russell, Garrett A. Salzman, 2022, The American surgeon.

Correlation Between Postoperative Antimicrobial Prophylaxis Use and Surgical Site Infection in Children Undergoing Nonemergent Surgery.

A. Allori, C. Ko, M. Proctor, 2022, JAMA surgery.

Successful Implementation of Enhanced Recovery in Elective Colorectal Surgery is Variable and Dependent on the Local Environment

C. Ko, Mark E. Cohen, E. Wick, 2021, Annals of surgery.

Beyond outcomes--the appropriateness of surgical care.

C. Ko, Clara N. Lee, 2009, JAMA.

CHAPTER 48 – The Acute Abdomen

C. Ko, M. Mcgory, 2007 .

Is social support associated with greater weight loss after bariatric surgery?: a systematic review

P. Shekelle, I. Yermilov, C. Ko, 2011, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Comorbidities and risk adjustment: Role in surgery

C. Ko, M. Maggard, 2003 .

Improving Breast Cancer Quality of Care with the Use of Patient Navigators

K. Kahn, I. Yermilov, C. Ko, 2010, The American surgeon.

Databases for surgical health services research: National cancer database

C. Ko, R. Ellis, Lina Q. Hu, 2018, Surgery.

Association Between Biliary Pathogens, Surgical Site Infection, and Pancreatic Fistula

H. Pitt, S. Seo, M. Gonen, 2023, Annals of surgery.

Piperacillin-Tazobactam vs Cefoxitin Prophylaxis for Pancreatoduodenectomy-Reply.

C. Ko, M. D'Angelica, Ryan J Ellis, 2023, JAMA.

Development of Quality Indicators: Lessons Learned in Bariatric Surgery

C. Ko, M. Maggard, M. Mcgory, 2006, The American surgeon.

On-demand Reporting of Risk-adjusted and Smoothed Rates for Quality Profiling in ACS NSQIP

C. Ko, Yaoming Liu, Mark E. Cohen, 2016, Annals of surgery.

The next generation of quality assessment: Developing a specialty- and outcome-specific American College of Surgeons National Surgical Quality Improvement Program

C. Ko, K. Bilimoria, Mark E. Cohen, 2009 .

Role of Operative Complexity Variables in Risk Adjustment for Patients With Cancer.

C. Ko, K. Bilimoria, Mark E. Cohen, 2016, JAMA surgery.

American College of Surgeons and Surgical Infection Society: Surgical Site Infection Guidelines, 2016 Update.

K. Itani, C. Ko, J. Minei, 2017, Journal of the American College of Surgeons.

The rate of bleeding complications after pharmacologic deep venous thrombosis prophylaxis: a systematic review of 33 randomized controlled trials.

C. Ko, M. Leonardi, M. Mcgory, 2006, Archives of surgery.

Impact of Tumor Location on Nodal Evaluation for Colon Cancer

C. Ko, D. Bentrem, M. Talamonti, 2008, Diseases of the colon and rectum.

Effect of Subjective Preoperative Variables on Risk-Adjusted Assessment of Hospital Morbidity and Mortality

C. Ko, K. Bilimoria, Mark E. Cohen, 2009, Annals of surgery.

Impact of Physician–Patient Discussions on Patient Satisfaction

K. Kahn, C. Ko, P. Ganz, 2008, Medical care.

Association Between Hospital Imaging Use and Venous Thromboembolism Events Rates Based on Clinical Data

C. Ko, D. Bentrem, D. Mahvi, 2014, Annals of surgery.

Effect of hospital type and volume on lymph node evaluation for gastric and pancreatic cancer.

C. Ko, D. Bentrem, M. Talamonti, 2008, Archives of surgery.

Surgical Professionalism: The Inspiring Surgeon of the Modern Era.

C. Ko, Julia R Berian, P. Angelos, 2016, Annals of surgery.

Improving Health-Care Quality Through Measurement

C. Ko, Jason B Liu, Jill S. Sage, 2022 .

Validity and Feasibility of the American College of Surgeons Colectomy Composite Outcome Quality Measure

E. Lawson, W. Chow, C. Ko, 2013, Annals of surgery.

Procedure-level Misutilization of Antimicrobial Prophylaxis in Pediatric Surgery: Implications for Improved Stewardship and More Effective Infection Prevention.

C. Ko, Mark E. Cohen, B. Hall, 2023, Journal of pediatric surgery.

Incidence and Relative Burden of Surgical Site Infections in Children Undergoing Nonemergent Surgery

C. Ko, Mark E. Cohen, M. Hall, 2022, Annals of surgery.

Identification of specific quality improvement opportunities for the elderly undergoing gastrointestinal surgery.

C. Ko, D. Bentrem, K. Bilimoria, 2009, Archives of surgery.

Effect of Postdischarge Morbidity and Mortality on Comparisons of Hospital Surgical Quality

C. Ko, D. Bentrem, K. Bilimoria, 2010, Annals of surgery.

Evidence-based medicine in surgery: the importance of both experimental and observational study designs.

C. Ko, R. Merkow, 2011, JAMA.

L. Neumayer, K. Itani, C. Ko, 2008, Journal of the American College of Surgeons.

Positive correlation of employment and psychological well-being for veterans with major abdominal surgery.

C. Ko, C. Wendel, M. Grant, 2010, American journal of surgery.

Which Patients Require More Care after Hospital Discharge? An Analysis of Post-Acute Care Use among Elderly Patients Undergoing Elective Surgery.

Aaron J. Dawes, E. Lawson, C. Ko, 2015, Journal of the American College of Surgeons.

Association of VA Surgeons Positive correlation of employment and psychological well-being for veterans with major abdominal surgery

C. Ko, C. Wendel, M. Grant, 2013 .

Risk adjustment for comparing hospital quality with surgery: how many variables are needed?

J. Birkmeyer, C. Ko, J. Dimick, 2010, Journal of the American College of Surgeons.

Perioperative quality-of-care measures for patients undergoing total hip or total knee replacement.

C. Ko, J. Lieberman, N. SooHoo, 2009, Journal of long-term effects of medical implants.

Administrative and Registry Databases for Patient Safety Tracking and Quality Improvement.

C. Ko, B. Brajcich, Chelsea P. Fischer, 2021, Surgical Clinics of North America.

Identifying Worsening Surgical Site Infection Performance

E. Lawson, C. Ko, B. Hall, 2012, American journal of medical quality : the official journal of the American College of Medical Quality.

Using Both Clinical Registry and Administrative Claims Data to Measure Risk-adjusted Surgical Outcomes.

R. Brook, E. Lawson, C. Ko, 2016, Annals of surgery.

American College of Surgeons National Surgical Quality Improvement Program Pediatric: a phase 1 report.

C. Ko, P. Dillon, K. Oldham, 2011, Journal of the American College of Surgeons.

Variation in Hospital Use of Postacute Care After Surgery and the Association With Care Quality

Aaron J. Dawes, R. Brook, E. Lawson, 2016, Medical care.

Evaluation of surveillance bias and the validity of the venous thromboembolism quality measure.

C. Ko, D. Baker, D. Bentrem, 2013, JAMA.

Investigations using clinical data registries: observational studies and risk adjustment.

C. Ko, K. Bilimoria, B. Hall, 2009, Surgery.

Profiling Individual Surgeon Performance Using Information from a High-Quality Clinical Registry: Opportunities and Limitations.

C. Ko, B. Hamilton, J. Paruch, 2015, Journal of the American College of Surgeons.

Surgical quality improvement programs in Japan and USA: Report from the collaborative projects between Japanese Society of Gastroenterological Surgery and American College of Surgeons National Surgical Quality Improvement Program

H. Miyata, S. Marubashi, C. Ko, 2019, Annals of gastroenterological surgery.

Measuring the quality of breast cancer care: National variation in the use of radiation among women under age 70

S. Edge, C. Ko, A. Stewart, 2007 .

Do cancer-specific variables improve risk-adjusted hospital quality comparisons?

W. Chow, C. Ko, D. Bentrem, 2012, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.