{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T06:13:24Z","timestamp":1777356804415,"version":"3.51.4"},"reference-count":46,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2012,9,6]],"date-time":"2012-09-06T00:00:00Z","timestamp":1346889600000},"content-version":"vor","delay-in-days":736,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Obesity"],"published-print":{"date-parts":[[2010,9]]},"abstract":"<jats:p>Although current evidence emphasizes a high prevalence of vitamin D deficiency and an inverse association between serum 25\u2010hydroxyvitamin D (25\u2010OHD) concentration and obesity, no studies have been conducted in Mexican children. The objective was to determine the prevalence of vitamin D deficiency and its association with obesity and lifestyle factors in a sample of school\u2010aged Mexican children. A cross\u2010sectional study of 99 obese and 99 nonobese 6\u201312 year\u2010old children, skin phototypes III\u2013V, from six public schools was conducted during summer at latitude 25\u00b040\u2032, in northeastern Mexico. Anthropometric measurements were determined. Serum 25\u2010OHD was measured by immunoluminometric direct assay. Consumption of foods rich in vitamin D, sunscreen use and vitamin consumption were assessed through applied questionnaires. 62.1% of the subjects had insufficiency of 25\u2010OHD (21\u201329 ng\/ml) and 20.2% had deficiency (&lt;20 ng\/ml). Obese subjects (BMI \u226595th percentile for age and gender) had significantly lower concentration of 25\u2010OHD than nonobese. Predictors of 25\u2010OHD concentration were, in order of significance: percentage of body fat, BMI, triceps skin fold, and waist circumference (WC). A significantly higher rate of 25\u2010OHD deficiency was observed in children with inadequate milk\/yoghurt consumption, but no difference was found for other foods, physical activity (PA) or screen\u2010time. In a multivariate model, being obese was significantly associated with the risk of 25\u2010OHD deficiency, after adjustment for PA, screen\u2010time, skin phototype, ingestion of milk\/yoghurt, fish, cheese, and carbonated beverages. A high prevalence of vitamin D deficiency and an inverse association between serum 25\u2010OHD concentration and obesity was found.<\/jats:p>","DOI":"10.1038\/oby.2009.448","type":"journal-article","created":{"date-parts":[[2009,12,10]],"date-time":"2009-12-10T17:01:12Z","timestamp":1260464472000},"page":"1805-1811","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":49,"title":["Serum 25\u2010Hydroxyvitamin D Concentration, Life Factors and Obesity in Mexican Children"],"prefix":"10.1002","volume":"18","author":[{"given":"Leticia","family":"Elizondo\u2010Montemayor","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia 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