Objective: to describe changes in functional status of community-dwelling S
panish elderly people, followed for 2 years, and to identify socio-demograp
hic and health characteristics that predict functional change.
Method: we have analysed data from the first two waves of the longitudinal
study, Ageing in Leganes, from a representative sample of community-dwellin
g people aged 65 and over (n = 1273). Functional status was categorized acc
ording to a hierarchical scale as: completely functional, with functional l
imitations, with instrumental activities of daily living (IADL) disability,
with activities of daily living (ADL) disability or deceased. Multinomial
logistic regression was used to estimate the predictive value of selected 1
993 socio-demographic and health status variables on 1995 functional status
.
Results: prevalence of disability based on dependency in any of seven ADL i
tems was 15.5%. Half of the respondents were disabled in at least one of 10
IADLs. Some improved functionally, others deteriorated. Men were more like
ly to recover function while women were more likely to enter and to remain
in the IADL state. Socioeconomic factors were associated to baseline functi
onal status and to functional status change on bivariate analysis. Number o
f chronic diseases, presence of cognitive problems and depressive symptoms
predicted transitions, even after controlling for baseline functional statu
s.
Conclusion: although estimates of prevalence of disability among people ove
r 65 are higher in Spain than in other European and North American countrie
s, the pattern of functional changes, both in the direction of improvement
and decline, seems to be similar.