Epidemiologic studies are increasingly used to investigate the safety and effectiveness of
medical products and interventions. Appropriate adjustment for confounding in such studies …

The goal of this study was to provide nationally representative data on characteristics of
patients who died after hip and knee arthroplasty and to determine risk factors for such …

Comorbidities affect outcome, but there is no consensus which comorbidity instrument is
best in orthopedic surgery. We assessed whether the American Society of Anesthesiologists …

OBJECTIVE: To compare the recovery of mobility and self-care functions among veteran
amputees according to the timing and type of rehabilitation services received. DESIGN …

BACKGROUND: Although resection of pancreatic neuroendocrine tumors (PNETs) has a
demonstrated survival advantage, further evaluation of the overall morbidity of these …

BACKGROUND: Evidence suggests that excess mortality among African‐American cancer
patients is explained in part by the healthcare setting. The objective of this study was to …

Patients' choices of specialist physicians may be guided by referring physicians and report
cards. I examine referral patterns to cardiac surgeons to assess whether publication of the …

Background: Community-acquired pneumonia (CAP) is the most common infectious cause
of death in the United States. To understand the effect of efforts to improve quality and …

ABSTRACT Unlabelled Image Background. Severe infections resulting from periapical
abscesses may warrant hospitalization. The authors conducted a study to investigate the …

Background: Given that prescription drugs have become a major financial component of
health care, there is an increased need to explain variations in the use of and expenditure …