Physical activity, change in blood pressure and predictors of mortality in older South Africans : a 2-year follow-up study.
A 2-year follow-up study of a cohort of 200 historically disadvantaged older South Africans was conducted to :
(i) characterise current levels of habitual physical activity ;
(ii) relate physical activity to current risk factors for chronic disease ;
and (iii) identify risk factors associated with 2-year mortality.
The baseline sample, drawn in 1993, was found to have a high prevalence of hypertension (71.7%). Research design.
Retrospective cohort study
A baseline sample of 200 persons aged = 65 years, resident in the Cape Peninsula, was randomly drawn by means of a two-stage cluster design.
Baseline measurements included
Anthropometry, waist/hip ratio, systolic and diastolic blood pressure, body mass index (BMI), serum albumin, serum ferritin, haemoglobin and fasting plasma glucose levels, plasma lipid profiles, oral glucose tolerance test and self-reported health status.
Subjects were revisited after 2 years, at which time an adapted version of the Yale Physical Activity Survey was administered and measurements of blood pressure and anthropometry were repeated.
Spearman's rank-order correlations were used to describe relationships between various current risk factors and physical activity.
Logistic regression was used to determine predictors of 2-year mortality from baseline data.
At follow-up, 142 of the subjects (66 men, 76 women) were traced and measurements collected. (...)
Mots-clés Pascal : Mortalité, Vieillard, Homme, République Sud Africaine, Afrique, Facteur risque, Exercice physique, Pression artérielle, Prédicteur, Etude longitudinale, Epidémiologie
Mots-clés Pascal anglais : Mortality, Elderly, Human, South Africa, Africa, Risk factor, Physical exercise, Arterial pressure, Predictor, Follow up study, Epidemiology
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0540925
Code Inist : 002B30A01A2. Création : 24/03/1998.