Racial/Ethnic Differences in 25‐Hydroxy Vitamin D and Parathyroid Hormone Levels and Cardiovascular Disease Risk Among Postmenopausal Women

Background Recent evidence suggests that racial/ethnic differences in circulating levels of free or bioavailable 25‐hydroxy vitamin D (25[ OH ]D) rather than total 25( OH )D may explain apparent racial disparities in cardiovascular disease ( CVD ). We prospectively examined black‐white differences in the associations of total, free, and bioavailable 25( OH )D, vitamin D–binding protein, and parathyroid hormone levels at baseline with incident...