Predicting mortality from community surveys of older adults: the importance of self-rated functional ability

J Gerontol B Psychol Sci Soc Sci. 1997 May;52(3):S155-63. doi: 10.1093/geronb/52b.3.s155.


Using data from the 1990 baseline of the National Survey of Self-Care and Aging (NSSCA), and nearly three years of follow-up mortality data, we examined the association between self-rated functional ability, a global measure of perceived ability of function independently, and mortality among a national sample of older adults. The study included 3,485 subjects selected from the Medicare Beneficiary Files according to a stratified random sampling design, with approximately equal numbers of adults by gender in each of three age categories, 65-74, 75-84, and 85 and over. Self-rated functional ability was found to have an independent contribution to the subsequent risk of death among older adults. Using multivariate models that accounted for self-rated health, age, gender, medical conditions, functional status, and assistance from others, poor self-ratings on this single item nearly doubled the risk of death during the follow-up period. These findings suggest the importance, for both researchers and clinicians, of measuring the potential prognostic importance of self-ratings of health and self-ratings of functional ability among older adults.

Publication types

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

MeSH terms

  • Activities of Daily Living*
  • Adaptation, Psychological
  • Aged
  • Aged, 80 and over
  • Aging*
  • Community Health Services*
  • Female
  • Forecasting
  • Health Surveys*
  • Humans
  • Male
  • Mortality*
  • Proportional Hazards Models
  • Self Care
  • Self-Assessment*