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  1. Variation in reported prevalences of hypertension in The Netherlands : the impact of methodological variables.

    Article - En anglais

    Study objective

    To estimate the prevalence of hypertension in The Netherlands and to quantify the influence of methodological variables on the reported prevalences.

    Design

    A pooled analysis was performed based on reported age specific prevalences of hypertension.

    A logistic model was used to estimate the probability of hypertension.

    Main results

    The age standardised prevalence of hypertension varies more than fivefold between studies carried out in The Netherlands.

    The probability of having hypertension was lower if blood pressure was measured at more than one point in time (Odds ratio 0.44 (OR) (95% confidence interval (95% CI) 0.38,0.51) for men and O. 47 (0.41,0.54) for women, and if the study was carried out more recently (OR 0.92 (0.91,0.93) per year).

    The probability was higher if the study was carried out in a general practice (OR 1.14 (1.03,1.27) for men and 1.52 (1.36,1.69) for women).

    The inclusion of treated people as hypertensive yields contradictory results for men and women.

    Conclusions

    The strong variation in prevalence is explained by methodology and by a period effect indicating a decrease of the prevalence of hypertension over time.

    Whether this decrease is true or caused by confounding due to unknown or unreported methodological variation over time is unknown.

    For future studies, a standardised method could reduce the influence of methodological variables and thereby the variation in reported prevalences.

    Mots-clés Pascal : Hypertension artérielle, Epidémiologie, Prévalence, Méthodologie, Homme, Etude comparative, Analyse temporelle, Pays Bas, Europe, Appareil circulatoire pathologie

    Mots-clés Pascal anglais : Hypertension, Epidemiology, Prevalence, Methodology, Human, Comparative study, Time analysis, Netherlands, Europe, Cardiovascular disease

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

    Cote : 95-0424567

    Code Inist : 002B12B05B. Création : 01/03/1996.