Adjusted* geometric means (standard error) of serum 25-hydroxyvitamin D (25(OH)D) levels (ng/ml) by categories of serum organochlorine (OC) pesticides levels.

*Adjusted for gender, age, race, BMI, smoking status, outdoor activity, and vitamin D supplement.†The summary measure of 3 OC pesticides was calculated by summing individual ranks of 3 OC pesticides (p,p′-DDE, p,p′-DDT, and β-hexachlorocyclohexane).‡The summary measure of all 7 OC pesticides was calculated by summing individual ranks of 7 OC pesticides.