[Statistical study of the arterial pressure in beneficiaries at the Mexican Institute for Social Security].

Arterial blood pressure was determined by the method of Korotkoff in 394 men and 1647 women. The mean values for men were 139/88 and for women 131/83. Arterial hypertension was found in 17.68% of the cases. A direct relationship was found between obesity and hypertension in both sexes. However, no correlation was found between obesity or cigarette smoking and mean arterial pressure. A significant interaction between hypertension and other risk factors (obesity and cigarette smoking) was found.