An error occurred in this article published in Pediatrics (doi:10.1542/peds.2008-2041) The wrong version of this entire manuscript was printed and should be ignored. The correct version is now online. The wrong version contains data from 2001–2004, but the correct version includes data from 2001–2006. The correct version of the abstract follows.
OBJECTIVE: Single center studies suggest that hypovitaminosis D is widespread. Our objective was to determine the serum levels of 25-hydroxyvitamin D (25[OH]D) in a nationally representative sample of U.S. children ages 1–11 years.
METHODS: Data were obtained from 2001–2006 National Health and Nutrition Examination Survey (NHANES). Serum 25(OH)D was determined by radioimmunoassay and categorized as <25 nmol/L, <50 nmol/L, and <75 nmol/L. National estimates were obtained using assigned patient visit weights and reported with 95% confidence intervals (95%CI).
RESULTS: During 2001–2006, the mean serum 25(OH)D level for U.S. children ages 1–11 years was 68 nmol/L (95%CI, 66–70). Children ages 6–11 years had lower mean levels of 25(OH)D (66 nmol/L; 95%CI, 64–68) compared to children ages 1–5 years (70 nmol/L; 95%CI, 68–73). Overall, the prevalence of <25 nmol/L was 1% (95%CI, 0.7–1.4), <50 nmol/L was 18% (95%CI, 16–21), and <75 nmol/L was 69% (95%CI, 65–73). The prevalence of 25(OH)D <75 nmol/L was higher among ages 6–11 years (73%) compared to ages 1–5 years (63%); females (71%) compared to males (67%); and non-Hispanic black (92%) and Hispanic (80%) compared to non-Hispanic whites (59%).
CONCLUSIONS: Based on a nationally representative sample of U.S. children ages 1–11 years, millions of children may have suboptimal levels of 25(OH)D, especially non-Hispanic black and Hispanic children. More data in children are needed not only to understand better the health implications of specific serum levels of 25(OH)D, but also to determine the appropriate vitamin D supplement requirements for children.