Evidence for additional blood pressure correlates in adults 20-56 years old.

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Abstract
The offspring of parents belonging to the original Framingham Heart Study cohort, and spouses of these offspring, were examined beginning in 1971. Cardiovascular examinations similar to those performed on the parents in 1952-1953 were given to offspring and their spouses. The mean blood pressure (BP) appeared to be lower in the female offspring-spouses than in the cohort mothers. Comparable multivariate analyses on 3588 offspring and spouses of both sexes, ages 20-49 years, and 1842 parents, ages 30-49 years, confirmed the frequently reported importance of weight, heart rate, alcohol consumption, glucose and hematocrit or hemoglobin as independent positive correlates and smoking as an inverse correlate of botsured variables of total serum proteins and plasma triglycerides added significantly to prediction of BP in both sex groups, and a less striking negative association was found for serum phosphorus. The findings for serum proteins and triglycerides were supported in a separate population of middle-aged twin men. Even with the additional measured variables, only 28-34% of the total BP variance is explained in these populations.