International Scholarly Research Network ISRN Obstetrics and Gynecology Volume 2012, Article ID 691486, 9 pages doi:10.5402/2012/691486
Research Article Factors Associated with Vitamin D Deficiency and Inadequacy among Women of Childbearing Age in the United States Guixiang Zhao,1 Earl S. Ford,1 James Tsai,1 Chaoyang Li,2 and Janet B. Croft1 1 Division
of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA 2 Division of Behavioral Surveillance, Public Health Surveillance Program Office, Office of Surveillance, Epidemiology and Laboratory Services and Centers for Disease Control and Prevention, Atlanta, GA 30341, USA Correspondence should be addressed to Guixiang Zhao,
[email protected] Received 29 September 2011; Accepted 13 November 2011 Academic Editors: A. Martin-Hidalgo and C. J. Petry Copyright © 2012 Guixiang Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective. To examine the prevalence and correlates of vitamin D deficiency and inadequacy among US women of childbearing age. Methods. Data from 1,814 female participants (20–44 y) in the 2003–2006 NHANES were analyzed to estimate the ageadjusted prevalence and prevalence ratios with 95% confidence intervals (CIs) for vitamin D deficiency (defined as serum 25hydroxyvitamin D [25(OH)D]
