The aim of this study was to provide a broad characterization of the epidemiology of acute
renal failure (ARF) in the United States using national administrative data and describe its …

Despite improvements in intensive care and dialysis, some experts have concluded that
outcomes associated with acute renal failure (ARF) have not improved significantly over …

Administrative and claims databases may be useful for the study of acute renal failure (ARF)
and ARF that requires dialysis (ARF-D), but the validity of the corresponding diagnosis and …

BACKGROUND AND OBJECTIVE: The impact of different comorbidity ascertainment
lookback periods on modeling posthospitalization mortality and readmission was examined …

BACKGROUND AND OBJECTIVES: Adjustment for comorbidity is an essential component
of any observational study comparing outcomes. We evaluated the validity of the Charlson …

Background: Identifying appropriate comorbidity data sources is a key consideration in
health services and outcomes research. Objective: Using cancer patients as an example, we …

Objectives: To review common and life-threatening complications resulting in intensive care
unit admission for patients undergoing orthopedic surgery procedures. To identify specific …

Linkage of routinely collected health data collections is increasingly being used to
investigate maternal and infant morbidity and mortality. Such data have the advantage of …

STUDY OBJECTIVE: To examine, with a large database, the effect of postoperative epidural
analgesia (vs systemic analgesia) on mortality after colectomy is unclear. DESIGN …

This study explored medical conditions associated with mortality among veterans following
transfemoral amputation, transtibial amputation, or hip disarticulation. We applied logistic …