Association of serum 25-hydroxyvitamin D concentration with anthropometric measures in children and adolescents: the CAS
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ORIGINAL ARTICLE
Association of serum 25‑hydroxyvitamin D concentration with anthropometric measures in children and adolescents: the CASPIAN‑V study Maryam Bemanalizadeh1 · Motahar Heidari‑Beni1 · Hanieh‑Sadat Ejtahed2,3 · Ramin Heshmat4 · Fereshteh Baygi5 · Ehsan Seif6 · Armita Mahdavi‑Gorab7 · Amir Kasaeian8,9 · Majid Khademian1 · Mostafa Qorbani10,11 · Roya Kelishadi1 Received: 20 June 2020 / Accepted: 29 October 2020 © Springer Nature Switzerland AG 2020
Abstract Background Serum 25-hydroxyvitamin D (25(OH)D) concentrations reflect vitamin D status, with deficiency implicated as an underlying factor for many adverse health effects. This study aims to analyze the association between vitamin D status and different anthropometric measures in a large pediatric population. Methods This nationwide cross-sectional study was conducted in 2019 in blood samples obtained from school students of 30 provinces in Iran. Participants were 2596 children and adolescents aged 7–18 years. Weight, height, waist circumference (WC), hip circumference (HC), neck circumference (NC), and wrist circumference (WrC) were measured. Body mass index (BMI) and waist-to-height ratio (W/HtR) were calculated. Serum 25(OH)D concentrations were measured using chemiluminescent immunoassay. Results Participants consisted of 55% boys, 71.3% urban inhabitants, with a mean (SD) age of 12.1 (3.0) years. Overall, vitamin D deficiency was documented in 10.6% of participants, insufficiency in 60.4%, and sufficiency in 29% of the population studied. The mean of BMI and WC was higher in the vitamin D deficient than in the vitamin D sufficient group (19.31 kg/ m2 and 69.24 cm vs. 18.34 kg/m2 and 65.73 cm, respectively, P
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