This epidemiological survy on cerebro-cardiovascular diseases was performed in 965 inhabitants ranging in age from 40 to 79 at a farming community in the northeastern part of Saitama prefecture.
Used in the present study are data concerning the following: age, the degree of obesity, skinfold thickness, systolic blood pressure, diastolic blood pressure, total cholesterol and trigryceride. The results are summarized as follows:
1) The mean value of systolic blood pressure increased linearly with advancing age for men and women.
2) The simple correlation analysis disclosed that systolic blood pressure was positively correlated to age, the degree of obesity, skinfold thickness, diastolic blood pressure and triglyceride level for men. In females, systolic blood pressure was positively correlated to age, the degree of obesity, skinfold thickeness, diastolic blood pressure, total cholesterol and triglyceride level.
3) Principal component analysis was made on men and women. Worthy of note is the fact that the principal component analysis of data showed a different pattern between men and women.
4) Multiple regression analysis was also carried out, taking blood pressure level as dependent variables, and age, the degree of obesity, stinfold thickness, total cholesterol and trigryceride level as indepenndent variables. As a result, it was found that systolic blood pressure levels have asignificant correlation to age, the degree of obesity and triglyceride, in men. In females, age and the degree of obesity were positively related to systolic blood pressure.
Diastolic blood pressure levels showed a significantly positive correlation to the degree of obesity and triglyceride level for men. In femrales, the degree of obesity and total cholesterol were shown to be significantly related to diastolic blood pressue.

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