Increasing serum 25-hydroxyvitamin D is associated with reduced odds of long menstrual cycles in a cross-sectional study of African American women
Jukic AM, Upson K, Harmon QE, Baird DD. Increasing serum 25-hydroxyvitamin D is associated with reduced odds of long menstrual cycles in a cross-sectional study of African American women. Fertility And Sterility 2016, 106: 172-179.e2. PMID: 26997249, PMCID: PMC4930882, DOI: 10.1016/j.fertnstert.2016.03.004.Peer-Reviewed Original ResearchConceptsMenstrual cycle lengthLong menstrual cyclesCross-sectional studyMenstrual cycleAfrican American womenCycle lengthSelf-reported menstrual cycle lengthVitamin D statusPolytomous logistic regressionAmerican womenD statusGynecologic historyOvarian hormonesProspective studyOvarian functionReduced oddsMAIN OUTCOMEIrregular cyclesLogistic regressionWomenOddsFurther investigationDaysAssociationMedications