With the aging of the population, functional decline is one of the major challenges to health care systems.
The objective of this study was to estimate the incidence of functional decline and improvement in a community-dwelling population of people aged 75 years and above.
A representative sample of elderly people living at home in the city of Sherbrooke (Québec, Canada) was assessed yearly on three occasions (1991-1993) by a nurse.
Disabilities were measured by the Functional Autonomy Measurement System, a 29-item rating scale developed according to the World Health Organization classification of disabilities.
From the 655 subjects who agreed to participate, a total of 572 subjects completed the study, including 68 who subsequently died.
The probability of declining was 20.1% for the first year and 12.4% for the second year.
The incidence of functional decline among previously stable subjects was 11.9% (95% confidence interval (Cl) 8.9-15.9).
Age was strongly related to decline (relative risk (RR)=1.15/year, 95% Cl 1.09-1.21), but there was no significant sex effect (RRmale=0.88,95% Cl 0.55-1.39).
The incidence of improvement among previously disabled subjects was estimated at 7.5% (95% Cl 5.1-10.9) for the first year and 17.9% (95% Cl 14.0-23.0) for the second year.
Neither age (RR=1.07,95% Cl 0.99-1.15) nor sex (RRmale=1.70,95% Cl 0.90-3.18) was significantly associated with the probability of improving. (...)
Mots-clés Pascal : Dépendance fonctionnelle, Vieillard, Homme, A domicile, Epidémiologie, Changement, Etude longitudinale, Canada, Amérique du Nord, Amérique
Mots-clés Pascal anglais : Functional dependence, Elderly, Human, At home, Epidemiology, Change, Follow up study, Canada, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0324513
Code Inist : 002B30A01A2. Création : 12/09/1997.