Ee. Femia et al., PREDICTING CHANGE IN ACTIVITIES OF DAILY LIVING - A LONGITUDINAL-STUDY OF THE OLDEST-OLD IN SWEDEN, The journals of gerontology. Series B, Psychological sciences and social sciences, 52(6), 1997, pp. 294-302
We examined predictors of stability and decline in activities of daily
living (ADLs) and mobility in a population-based sample of the oldest
old. Respondents were people aged 84 to 90 living in South Central Sw
eden. Predictors were drawn from three domains: sociodemographic varia
bles, vitality, and physical and psychological health. Using a logisti
c regression model, we sought to identify variables that were associat
ed with changes in functioning. Over the 2-year interval, we found sig
nificant main effects for stability in ADL functioning for three varia
bles: residential status (e.g., living in the community), subjective h
ealth, and mastery (n = 142). For mobility, we identified three variab
les associated with stability: lung function, subjective health, and m
astery (n = 137). Over the 4-year period we found that residential sta
tus was significantly associated with stability ill ADL performance (n
= 89), while age, marital status, grip strength, and mastery were sig
nificant predictors for stability in mobility (n = 90). The findings c
an direct researchers toward interventions within particular residenti
al environments that maintain a sense of mastery and an individual's a
ggressive attitude toward challenging situations.