Predictors and correlates of serum 25-hydroxyvitamin D concentrations in young women: results from the Safe-D study.
Br J Nutr
; 118(4): 263-272, 2017 Aug.
Article
en En
| MEDLINE
| ID: mdl-28875865
ABSTRACT
Vitamin D deficiency is a global public health concern. Studies of serum 25-hydroxyvitamin D (25(OH)D) determinants in young women are limited and few include objective covariates. Our aims were to define the prevalence of vitamin D deficiency and examine serum 25(OH)D correlates in an exploratory study of women aged 16-25 years. We studied 348 healthy females living in Victoria, Australia, recruited through Facebook. Data collected included serum 25(OH)D assayed by liquid chromatography-tandem MS, relevant serum biochemistry, soft tissue composition by dual-energy X-ray absorptiometry, skin melanin density, Fitzpatrick skin type, sun exposure using UV dosimeters and lifestyle factors. Mean serum 25(OH)D was 68 (sd 27) nmol/l and 26 % were vitamin D deficient (25(OH)D 2 h in the sun in summer daily, holidaying in the most recent summer period, serum Fe levels, height and multivitamin use were positively associated with 25(OH)D. Fat mass and a blood draw in any season except summer was inversely associated with 25(OH)D. Vitamin D deficiency is common in young women. Factors such as hormonal contraception, sun exposure and sun-related attitudes, as well as dietary supplement use are essential to consider when assessing vitamin D status. Further investigation into methods to safely optimise vitamin D status and to improve understanding of the impact of vitamin D status on long-term health outcomes is required.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Vitamina D
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Deficiencia de Vitamina D
Tipo de estudio:
Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Female
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Humans
País/Región como asunto:
Oceania
Idioma:
En
Revista:
Br J Nutr
Año:
2017
Tipo del documento:
Article
País de afiliación:
Australia