[Prevalence of arterial hypertension in the community. Experience of the province of Veneto].

In the context of a W.H.O. Community Control Program of Hypertension, 15.187 subjects aged 20-64 years were examined in three distinct areas of the Veneto region: Camposampiero (Padua), Valdagno (Vicenza) and Mirano (Venice). The prevalence of hypertension was evaluated according to W.H.O. criteria. The prevalence of the three forms of hypertension "systolic only", "diastolic only" and "systo-diastolic together", the difference according to sex and the correlation with age were also calculated. In particular the correlation with age was evaluated in four arbitrary classes of relative weight. The mean prevalence of hypertension into the three samples was 30.7%. The most common form was "systo-diastolic together" (15.5%). The prevalence of hypertension was higher in males and increased with age in both sexes. A positive association between the prevalence of hypertension and the age was observed in all the three classes of relative weight. This association was more noticeable in the classes of a higher relative weight. The association between weight and prevalence of hypertension is discussed in view of a primary prevention of hypertension. The results obtained clearly show the extent of the effort involved in order to control hypertension in the community.