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Prevalence of 25-hydroxyvitamin D deficiency in Korean adolescents: association with age, season and parental vitamin D status

Authors
 Shin Hye Kim  ;  Min Kyung Oh  ;  Ran Namgung  ;  Mi Jung Park 
Citation
 PUBLIC HEALTH NUTRITION, Vol.17(1) : 122-130, 2014 
Journal Title
PUBLIC HEALTH NUTRITION
ISSN
 1368-9800 
Issue Date
2014
MeSH
Adolescent ; Asian Continental Ancestry Group ; Body Mass Index ; Body Weight ; Child ; Cross-Sectional Studies ; Female ; Humans ; Logistic Models ; Male ; Multivariate Analysis ; Nutrition Surveys ; Prevalence ; Republic of Korea/epidemiology ; Risk Factors ; Seasons* ; Surveys and Questionnaires ; Vitamin D/blood* ; Vitamin D Deficiency/epidemiology*
Keywords
Adolescents ; Vitamin D deficiency
Abstract
OBJECTIVE:
We aimed to assess the prevalence and associated factors of vitamin D deficiency in healthy adolescents and to determine parent-adolescent association in vitamin D status.
DESIGN:
A cross-sectional study.
SETTING:
Data from the Korean National Health and Nutrition Examination Survey (KNHANES) 2008-2009. Serum 25-hydroxyvitamin D (25(OH)D) levels were measured using 125I-labelled RIA kits. Vitamin D deficiency in adolescents was defined as 25(OH)D level <27·5 nmol/l, and 25(OH)D levels between 27·5 and <50 nmol/l were considered insufficient. For the parents, vitamin D deficiency was defined as 25(OH)D level <50 nmol/l.
SUBJECTS:
The study population consisted of 2062 adolescents (1095 boys, 967 girls; aged 10-18 years) and their parents (1005 fathers, 1341 mothers).
RESULTS:
Overall, 13·4% of adolescents (boys 11·7%, girls 15·4%) were 25(OH)D deficient, 54·7% were 25(OH)D insufficient. Prevalence of vitamin D deficiency increased with age (P < 0·0001). Parental vitamin D deficiency was more prevalent in vitamin D-deficient adolescents than in non-deficient adolescents (all P < 0·0001). In multivariate logistic regression analyses, predictors for vitamin D deficiency were senior high school students (OR = 3·45-4·33), winter/spring season (OR = 3·18-5·11/5·35-7·36) and parental vitamin D deficiency (OR = 1·78-4·88; all P < 0·05).
CONCLUSIONS:
Vitamin D insufficiency is prevalent among healthy Korean adolescents and the parent-offspring association warrants vitamin D screening for family members of deficient individuals.
Full Text
http://dx.doi.org/10.1017/S1368980012004703
DOI
23098327
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Namgung, Ran(남궁란) ORCID logo https://orcid.org/0000-0001-7182-9535
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91773
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