The structure of the OARS physical health measures

Med Care. 1991 Apr;29(4):332-47. doi: 10.1097/00005650-199104000-00003.

Abstract

This article proposes and evaluates two models for integrating self-reported health status measures for the elderly with dominant conceptualizations of physical health. Each model includes three dimensions of physical health: chronic illness, functional limitation, and self-rated health. In Model 1, the dimensions are linked in a causal framework, whereas in Model 2, a second-order factor, labeled physical health status, is hypothesized to account for the relationships among the three dimensions. Each model was tested with data gathered in Cleveland (N = 1,834) and Virginia (N = 2,146) using the Older Americans Resources and Services Multidimensional Functional Assessment Questionnaire (OARS MFAQ). Analyses were further replicated by randomly dividing each sample. Both models fit the data well; their utilities will depend on the way in which physical health is conceptualized and on the nature of the research question at hand.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Activities of Daily Living
  • Aged
  • Chronic Disease
  • Geriatric Assessment*
  • Health Status Indicators*
  • Health*
  • Humans
  • Methods
  • Middle Aged
  • Models, Theoretical
  • Self-Assessment