Study Objective To determine the prevalence of postsurgical opioid use in the inpatient
setting, to ascertain the frequency of and risk factors for opioid‐related adverse drug events …

Background Recent studies of surgery for cancer have demonstrated variations in outcomes
among hospitals and among surgeons. We sought to examine variations in morbidity after …

Background Among patients who have undergone high-risk operations for cancer,
postoperative mortality rates are often lower at hospitals where more of these procedures …

Background. The comorbidity variables that constitute the Charlson index are widely used in
health care research using administrative data. However, little is known about the validity of …

Larger surgical caseload is associated with better patient outcome for many complex
procedures. We examined the volume-outcome relationship for transsphenoidal pituitary …

Purpose: Although robotic assisted laparoscopic surgery has been aggressively marketed
and rapidly adopted, there are few comparative effectiveness studies that support its …

BACKGROUND: Postoperative complications are a significant source of morbidity and
mortality. There are limited studies, however, assessing the impact of common postoperative …

Background: Administrative hospital discharge data are widely used to assess quality of
care in patients undergoing certain procedures. However, little is known about the validity of …

Background & Aims: Postoperative morbidity and mortality following a colectomy for
ulcerative colitis (UC) has been primarily reported from tertiary care referral centers that …

Administrative data are readily available, inexpensive, computer readable, and cover large
populations. Despite coding irregularities and limited clinical details, administrative data …