title: [Evaluation of solar exposure, intake and physical activity in relation with vitamin D serum status in Spanish prepubertal girls].
abstract: BACKGROUND
  Vitamin D and calcium play an important role in peak bone mass acquisition. Recent studies have suggested that vitamin D deficiency in children is widespread, mainly during infancy and adolescent years. However, the vitamin D status at others ages is unsufficiently investigated.
  
  
  OBJECTIVE
  To determine the vitamin D status in prepubertal, healthy South European girls, and to examine the relationship between serum vitamin D concentrations, sun exposure, physical activity and dietary intake.
  
  
  METHODS
  A cross-sectional observational study was conducted on 56 Caucasian; healthy and prepubertal girls aged 7-10 years. Dietary information, amount of sunlight exposure and activity were estimated. Blood samples were extracted in the first week of December.
  
  
  RESULTS
  Vitamin D intake was below the international recommended references. Mean serum vitamin D was 40.07 ± 10.49 ng/ml. No girl presented a level lower than 20 ng/ml; 25% had levels between 20-30 ng/ml and 75% above 30 ng/ml. We have not found differences in vitamin D levels from the girls who did sport and those who were sedentary.
  
  
  CONCLUSIONS
  Vitamin D status is suitable for prepubertal girls living in the South of Spain at the beginning of winter. However, it is necessary to follow-up girls and check and adequate vitamin D intake, as well as sufficient sun exposure.
authors.affiliation: Unidad de Metabolismo e Investigación Pediátrica, Hospital Universitario Reina Sofía, Córdoba, España.
authors.forename: D
authors.initials: D
authors.lastname: Ramírez-Prada
authors.forename: Ma J
authors.initials: MJ
authors.lastname: de la Torre
authors.forename: F J
authors.initials: FJ
authors.lastname: Llórente-Cantarero
authors.forename: J L
authors.initials: JL
authors.lastname: Pérez-Navero
authors.forename: M
authors.initials: M
authors.lastname: Gil-Campos
mesh_terms: D002648:Child; D003430:Cross-Sectional Studies; D004032:Diet; D005260:Female; D006801:Humans; D009043:Motor Activity; D009752:Nutritional Status; D064167:Recommended Dietary Allowances; D013030:Spain; D013177:Sports; D013472:Sunlight; D014807:Vitamin D / Q000097:blood*
chemical_list: D014807:Vitamin D