高血圧の発生要因に関する統計的研究

Abstract

A blood pressure survey was made on 2, 022 workers of a big electricity plant residing in the same district and exposed to similar environments. Factors taken as contributing to the causation of hypertension were: Age, hereditary disposition, personal clinical history, body type, Rohrer's index, thickness of the pinched skin, specific gravity of the blood, body weight change, caloric intake, quality of food, alcoholic intake, smoking, hours of sleep, hours of transport, number of family member, kinds of work, and intensity of labor. The workers were divided in two groups, i.e., those above and below 40 years of age. The former was again divided in those with hereditary predisposition and without it, to see whether or not the same a priori factors affecting these both groups have different bearing on the causation of hypertension. The results are as follows. 1. Irrespective of age, significant contribution to hypertension were found in body type, state of nutrition, alcoholic intake, smoking, and hours of sleep. 2. Irrespective of hereditary predisposition, significant contributions to hypertension were found in body type, state of nutrition, and hours of sleep. 3) With concomitance of age or hereditary disponsition; food, hours of transportation, number of family members, and labor conditions are contributory to hypertension. Obesity was found to be the most significant contributory factor. Even without any hereditary predisposition, obese workers over 40 years of age showed hypretension in about 50%. This and the above stated facts may be useful for supervision of workers as to prevention of hypertension.