Obesity is an important determinant of cardiovascular disease
because it directly affects several established cardiovascular
risk factors, including hypertension and diabetes.
It is estimated that the average weight for an 18-year-old
woman is 123 lbs. and increases to 142 lbs. at 50 years
of age. Also, let us assume that the average SBP for a
50-year-old woman is 125 mm Hg, with a standard deviation
of 15 mm Hg, and that SBP is normally distributed.
5.72 Suppose an average woman did not gain any weight
from age 18 to 50. What average SBP for 50-year-old
women would be expected under these assumptions?
5.73 If the standard deviation of SBP under the assumption
in Problem 5.72 remained the same (15 mm Hg), and the
distribution of SBP remained normal, then what would be
the expected proportion of hypertensive women under the
assumption in Problem 5.72?
5.74 What percentage of hypertension at age 50 is attributable
to the weight gain from age 18 to 50?