Prevalence and factors associated with hypovitaminosis D in adolescents from a sunny country: Findings from the ERICA survey.
J Steroid Biochem Mol Biol
; 199: 105609, 2020 05.
Article
em En
| MEDLINE
| ID: mdl-32006587
ABSTRACT
Vitamin D plays a role in bone and metabolic health in life long, however hypovitaminosis D is common in different settings. The aim of this study was to describe vitamin D status among adolescents from a large sunny country and analyze associated factors. This was a multicenter, cross-sectional, school-based study. A total of 1152 adolescents age 12-17 from four Brazilian cities, Rio de Janeiro, Fortaleza, Brasília, and Porto Alegre, were included. Anthropometric variables, diet, type of school, race and season of data collection were evaluated. Serum concentrations of 25-hydroxyvitamin D [25(OH)D] were measured and categorized into three levels ≤ 20â¯ng/mL, 21-29â¯ng/mL and ≥ 30â¯ng/mL. Ordered logistic regression models were used to explore the factors associated with hypovitaminosis D. The prevalence of vitamin D levels below 20â¯ng/mL, between 21 and 29â¯ng/mL and above 30â¯ng/mL was 21 % (95 %CI 19 %-24 %), 42 % (95 %CI 39 %-46 %) and 37 % (95 %CI 33 %-40 %), respectively. In the final adjusted model, hypovitaminosis D was positively associated with gender, center (latitudes), data collected in winter or spring, non-whites, and private school students. A higher proportional odds ratio (POR) for hypovitaminosis D was found among obese boys (PORâ¯=â¯2.2, 95 %CI 1.1-4.5), but not girls. Adequate dietary intake of vitamin D was a protective factor (PORâ¯=â¯0.4, 95 %CI 0.2-0.6) against hypovitaminosis D. In conclusion, there is a high prevalence of Brazilian adolescents at risk of hypovitaminosis D, independent of region. Due to their potential benefits, lifestyle changes should be stimulated, including healthier food choices and spending more time outdoors (with sun protection).
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vitamina D
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Deficiência de Vitamina D
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Child
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Female
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Humans
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Male
País/Região como assunto:
America do sul
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Brasil
Idioma:
En
Revista:
J Steroid Biochem Mol Biol
Ano de publicação:
2020
Tipo de documento:
Article