Increasing serum 25-hydroxyvitamin D is associated with reduced odds of long menstrual cycles in a cross-sectional study of African American women.

ABSTRACT:

Objective

To examine the association between serum 25-hydroxyvitamin D [25(OH)D] and menstrual cycle length and regularity.

Design

Community-based, cross-sectional study of serum 25(OH)D (adjusted for seasonal differences in timing of blood draw) and menstrual cycle length. Women aged 23-34 years reported their gynecologic history. Menstrual cycles were described with four independent categories (normal, short, long, irregular). We used polytomous logistic regression to estimate the association between a doubling of seasonally adjusted 25(OH)D and the odds of each cycle category.

Setting

Not applicable.

Patient(s)

A total of 1,102 African American women.

Intervention(s)

Not applicable.

Main outcome measure(s)

Self-reported menstrual cycle length o

SUBMITTER: Jukic AMZ 

PROVIDER: S-EPMC4930882 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature