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. 2006 Jul;91(7):569-72.
doi: 10.1136/adc.2005.077974. Epub 2005 Sep 20.

Hypovitaminosis D among healthy adolescent girls attending an inner city school

G Das  1 , S Crocombe, M McGrath, J L Berry, M Z Mughal
Affiliations

Hypovitaminosis D among healthy adolescent girls attending an inner city school

G Das et al. Arch Dis Child. 2006 Jul.

Abstract

Aims: To determine the prevalence of hypovitaminosis D among healthy adolescent schoolgirls attending an inner city multiethnic girls' school.

Methods: Fifty one (28%) of 182 girls (14 white, 37 non-white; median age 15.3 years, range 14.7-16.6) took part in the study. Biochemical parameters, dietary vitamin D intake, muscle function parameters, duration of daily sunlight exposure (SE), and percentage of body surface area exposed (%BSA) were measured.

Results: Thirty seven (73%) girls were vitamin D deficient (25-hydroxyvitamin D (25OHD) <30 nmol/l) and 9 (17%) were severely deficient (25OHD <12.5 nmol/l). The median (range) 25OHD concentration of white girls (37.3 nmol/l (18.3-73.3)) was higher than that of non-white girls (14.8 nmol/l (5.8-42.8)). The median (range) concentration of parathyroid hormone in white girls (2.8 pmol/l (1.0-3.7)) was lower than that of non-white girls (3.4 pmol/l (1.7-34.2)). Serum Ca, inorganic phosphate, alkaline phosphatase, and 1,25-dihydroxyvitamin D were not different in white and non-white girls. For the whole group, 25OHD concentration was related to the estimated SE and %BSA, but not to estimated intake of vitamin D. In white girls, the estimated SE and %BSA were significantly higher than that of non-white girls. The median times taken to complete the Gower's manoeuvre and grip strength were not different in the two groups; these variables were not related to serum 25OHD.

Conclusions: Hypovitaminosis D is common among healthy adolescent girls; non-white girls are more severely deficient. Reduced sunshine exposure rather than diet explains the difference in vitamin D status of white and non-white girls.

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Conflict of interest statement

Competing interests: none declared

Comment in

  • Don't ignore vitamin D.
    Bishop N. Bishop N. Arch Dis Child. 2006 Jul;91(7):549-50. doi: 10.1136/adc.2005.080879. Arch Dis Child. 2006. PMID: 16790716 Free PMC article.

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