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  1. Physical activity, change in blood pressure and predictors of mortality in older South Africans : a 2-year follow-up study.

    Article - En anglais

    Objective

    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

    Methods.

    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.

    Statistical analyses.

    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.

    Results

    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

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 97-0540925

    Code Inist : 002B30A01A2. Création : 24/03/1998.