BACKGROUND AND OBJECTIVES: Measurement of multimorbidity and comorbidity is
important in epidemiologic and health services research. The aim of this research was to …

The objective of this article is to compare the Charlson comorbidity index derived from
medical record data (Chart Index) with the same index derived from billing data (ICD-9 …

Multimorbidity, the coexistence of 2 or more chronic conditions, has become prevalent
among older adults as mortality rates have declined and the population has aged. We …

OBJECTIVES: To compare the ability of five measures of comorbidity to predict mortality and
incident disability in basic activities of daily living (BADLs) in unselected older persons …

Objective: We extend the literature on comorbidity measurement by developing 2 indices,
based on the Elixhauser Comorbidity measures, designed to predict 2 frequently reported …

To compare Charlson indices based on chart data and ICD-9 data for agreement overall and
on rating specific comorbid conditions, and to compare mortality risks associated with these …

Background Published prevalence studies on multimorbidity present diverse data collection
methods, sources of data, targeted age groups, diagnoses considered and study …

Background: the debate about measures of chronic comorbidity in the elderly is mainly due
to the lack of consensus on pathogenetic models. Objective: the aim of the present study …

Abstract Background The Charlson comorbidity index is widely used in ICD-9 administrative
data, however, there is no translation for Read/OXMIS coded data despite increasing use of …

Self-reported chronic diseases and health status are associated with resource use.
However, few data exist regarding their ability to predict mortality or hospitalizations. We …