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William J. O'Brien
William J. O'Brien
Statistician. VA Boston Healthcare System, CHOIR & Dept. of Surgery
Verified email at va.gov
Title
Cited by
Cited by
Year
Association of duration and type of surgical prophylaxis with antimicrobial-associated adverse events
W Branch-Elliman, W O’Brien, J Strymish, K Itani, C Wyatt, K Gupta
JAMA surgery 154 (7), 590-598, 2019
2832019
Factors associated with long-term outcomes of umbilical hernia repair
DA Shankar, KMF Itani, WJ O’Brien, VM Sanchez
JAMA surgery 152 (5), 461-466, 2017
952017
Risk of surgical site infection, acute kidney injury, and Clostridium difficile infection following antibiotic prophylaxis with vancomycin plus a beta-lactam versus either …
W Branch-Elliman, JE Ripollone, WJ O’Brien, KMF Itani, ML Schweizer, ...
PLoS medicine 14 (7), e1002340, 2017
912017
Association of postoperative infection with risk of long-term infection and mortality
WJ O’Brien, K Gupta, KMF Itani
JAMA surgery 155 (1), 61-68, 2020
552020
Medical and surgical readmissions in the Veterans Health Administration: what proportion are related to the index hospitalization?
AK Rosen, Q Chen, MH Shin, W O’Brien, M Shwartz, HJ Mull, M Cevasco, ...
Medical care 52 (3), 243-249, 2014
432014
Comparing 2 methods of assessing 30-day readmissions: what is the impact on hospital profiling in the veterans health administration?
HJ Mull, Q Chen, WJ O’Brien, M Shwartz, AM Borzecki, A Hanchate, ...
Medical care 51 (7), 589-596, 2013
392013
Validity of the AHRQ Patient Safety Indicator “central venous catheter-related bloodstream infections”
M Cevasco, AM Borzecki, WJ O'Brien, Q Chen, MH Shin, KMF Itani, ...
Journal of the American College of Surgeons 212 (6), 984-990, 2011
392011
Differences in risk scores of Veterans receiving community care purchased by the Veterans Health Administration
AK Rosen, TH Wagner, WBP Pettey, M Shwartz, Q Chen, J Lo, WJ O'Brien, ...
Health services research 53, 5438-5454, 2018
322018
What is the value of adding Medicare data in estimating VA hospital readmission rates?
WJ O'Brien, Q Chen, HJ Mull, M Shwartz, AM Borzecki, A Hanchate, ...
Health Services Research 50 (1), 40-57, 2015
252015
Clostridium difficile Screening for Colonization During an Outbreak Setting
K Linsenmeyer, W O’Brien, SM Brecher, J Strymish, A Rochman, K Itani, ...
Clinical Infectious Diseases 67 (12), 1912-1914, 2018
212018
Incidence and risk factors for long-term mesh explantation due to infection in more than 100,000 hernia operation patients
RD Ramos, WJ O’Brien, K Gupta, KMF Itani
Journal of the American College of Surgeons 232 (6), 872-880. e2, 2021
202021
How testing drives treatment in asymptomatic patients: level of pyuria directly predicts probability of antimicrobial prescribing
K Gupta, W O’Brien, J Gallegos-Salazar, J Strymish, W Branch-Elliman
Clinical Infectious Diseases 71 (3), 614-621, 2020
192020
Comparing cataract surgery complication rates in veterans receiving VA and community care
AK Rosen, ME Vanneman, WJ O'Brien, S Pershing, TH Wagner, ...
Health Services Research 55 (5), 690-700, 2020
182020
Association of screening and treatment for preoperative asymptomatic bacteriuria with postoperative outcomes among US veterans
JG Salazar, W O’Brien, JM Strymish, K Itani, W Branch-Elliman, K Gupta
JAMA surgery 154 (3), 241-248, 2019
172019
Factors associated with hospital admission after outpatient surgery in the Veterans Health Administration
HJ Mull, AK Rosen, WJ O'Brien, N McIntosh, A Legler, MT Hawn, ...
Health Services Research 53 (5), 3855-3880, 2018
162018
Incidence of SARS-CoV-2 infection in health care workers after a single dose of mRNA-1273 vaccine
K Gupta, WJ O’Brien, P Bellino, K Linsenmeyer, SJ Doshi, RS Sprague, ...
JAMA Network Open 4 (6), e2116416-e2116416, 2021
132021
Trends in the purchase of surgical care in the community by the Veterans Health Administration
AK Rosen, W O’Brien, Q Chen, M Shwartz, KFM Itani, W Gunnar
Medical care 55, S45-S52, 2017
122017
Vaccination status and the detection of SARS-CoV-2 infection in health care personnel under surveillance in long-term residential facilities
K Linsenmeyer, ME Charness, WJ O’Brien, J Strymish, SJ Doshi, ...
JAMA Network Open 4 (11), e2134229-e2134229, 2021
112021
Estimated risk of adverse surgical outcomes among patients with recent COVID-19 infection using target trial emulation methods
WJ O’Brien, K Gupta, KMF Itani
JAMA Network Open 6 (3), e234876-e234876, 2023
62023
Events, care, and outcomes after hernia mesh explantation for infection
RD Ramos, WJ O'Brien, K Gupta, KMF Itani
The American Journal of Surgery 224 (1), 174-176, 2022
62022
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Articles 1–20