Association between serum 25-hydroxyvitamin D and antimüllerian hormone levels in a cohort of African-American women

To examine the association between serum 25-hydroxyvitamin D [25(OH)D] levels and ovarian reserve as measured using antimüllerian hormone (AMH) levels. Cross-sectional study. Detroit, Michigan area. Data were obtained from a prospective cohort of self-identified Black or African American women aged 23–35 years at the time of enrollment (N = 1,593), who had no prior diagnosis of polycystic ovary syndrome, were not currently pregnant, and were not missing AMH or 25(OH)D level measures. Serum 25(OH)D. The serum AMH level was the main outcome. Linear regression was used to examine the associations between categorical 25(OH)D levels (