Differences in carotid artery distensibility coefficient (×10−5Pa−1) by gravidity compared to nulligravidas. Regression coefficients and 95% confidence intervals adjusted for systolic and diastolic blood pressure, height, weight, pulse rate, age and race/ethnicity, total cholesterol categories, HDL-cholesterol categories, current smoking, diabetes, BP medication use. Asterisks (*) mark significant differences from the nulliparous group. In pairwise comparisons, parity 2 and 3 differ from parity 5+ (p<0.05), all other pairwise differences do not reach statistical significance.