Objective Osteoarthritis (OA) is a common chronic condition in older individuals, but its
association with other chronic conditions is largely unknown. This study aimed to …

PURPOSE Many patients consulting in primary care have multiple conditions
(multimorbidity). Aims of this review were to identify measures of multimorbidity and …

Background: Comorbidity measures are necessary to describe patient populations and
adjust for confounding. In direct comparisons, studies have found the Elixhauser comorbidity …

Objectives To conduct a systematic review of studies reporting on the development or
validation of comorbidity indices using administrative health data and compare their ability to …

Objective There is no consensus on which comorbidity index is optimal for rheumatic health
outcomes research. We compared a new Rheumatic Disease Comorbidity Index (RDCI) with …

Background: Recently, van Walraven developed a weighted summary score (VW) based on
the 30 comorbidities from the Elixhauser comorbidity system. One of the 30 comorbidities …

Background The performance of the Charlson and Elixhauser comorbidity measures in
predicting patient outcomes have been well validated with ICD-9 data but not with ICD-10 …

This review assessed the use of electronic medical record (EMR) systems in outcomes
research. We systematically searched PubMed to identify articles published from January …

PURPOSE: The goal of this research was to estimate 12-month survival rates for a large
sample of elderly veterans after hip fracture with a risk-adjusted model and to compare the …

BACKGROUND: Cancer survival is related to features of the primary malignancy and
concurrent presence of nonmalignant diseases (comorbidities), including weight‐related …