TABLE J-61Distributions of Serum 25-Hydroxy Vitamin D of WIC Participants, NHANES 2005–2006

WIC Participant CategoryN25(OH)D Percentiles and Means (nmol/L) (SE)
10th25thMedianMean75th90th% < 40 nmol/L*
Women, P12041 (3.5)52 (2.6)66 (2.3)72.8 (2.9)83 (4.6)111 (10.5)8.6 (3.6)
Women, BF1933 (7.8)42 (5.6)53 (4.3)54 (3.9)65 (6.7)77 (11.1)21.2 (12.2)
Women, PP3837 (7.5)49 (4.7)62 (3.1)61 (2.8)73 (4.0)82 (5.8)12.6 (7.6)
Children, 1 to <2 Years10155.2 (3.4)64.3 (2.2)74.3 (1.6)74.0 (1.4)83.9 (2.1)92.5(3.2)1.1 (1.2)
Children, 2 to <5 Years20149 (2.0)57 (1.5)67 (1.2)68.9 (1.2)79 (2.0)91 (3.3)2.1 (1.3)

NOTES: 25(OH)D = 25-hydroxy-vitamin D; BF = breastfeeding, nonpregnant WIC-participating women; N = sample size; P = pregnant WIC-participating women; PP = WIC-participating women who are 6 months postpartum, not pregnant, and not breastfeeding; SE = standard error. Distributions were adjusted according to the method of Jahns et al. (2005), borrowing within-person variance from NHANES 2001–2002, for which two serum values were obtained. Serum data for 25(OH)D were only available in NHANES 2005–2006.

*

A serum 25(OH)D level of 40 nmol/L was established by the Institute of Medicine (2011b) as an average requirement that meets the needs of approximately half the population, used to establish EARs for dietary intake of vitamin D.

SOURCE: USDA/ARS, 2005–2006.

From: Appendix J, Nutrient and Food Intake of WIC Subgroups: Analytical Methods and Results

Cover of Review of WIC Food Packages
Review of WIC Food Packages: Improving Balance and Choice: Final Report.
National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review WIC Food Packages.
Washington (DC): National Academies Press (US); 2017 May 1.
Copyright 2017 by the National Academy of Sciences. All rights reserved.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.