Association of body mass index and serum vitamin D level in healthy Iranian adolescents

Baradaran, A. and Behradmanesh, S. and Nasri, H. (2012) Association of body mass index and serum vitamin D level in healthy Iranian adolescents. Endokrynologia Polska, 63 (1). pp. 29-33.

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Abstract

Introduction: In studies of obese adolescents in various countries, vitamin D deficiency has been correlated with greater weight and elevated BMI. However, there is insufficient data on the relation between vitamin D status and body fat indexes in adolescence. The aim of this study was to investigate the association of serum (25OHD) concentrations with body mass index of healthy Iranian subjects to understand whether specific data on the relation between vitamin D status and body mass index is common in all populations. Material and methods: Data was collected from 259 ambulant medical staff adults, students and other subjects who met the inclusion criteria of the study. Body mass index and fasting 25-Hydroxy vitamin D level were measured. Vitamin D deficiency was defined as having a 25(OH)D concentration < 25 nmol/L. Results: Participants were aged 20-64 years, mean age 34 ± 9 years, and about 57.5% of the participants were women. The mean (± SD) body mass index (kg/m 2) was 24.2 ± 3.8 kg/m2 (median = 23.7 kg/m 2), the mean (± SD) vitamin D level of the participants was 29 ± 16 nmol/L (median = 26 nmol/L), and 48% of the participants had vitamin D deficiency. In this study, there was no significant association between vitamin D level and BMI (r = 0.064; p = 0.307) (age adjusted). Moreover, there was no association between vitamin D level and sex of the participants. In addition, no association between BMI and sex of the adolescents was seen (p; NS), but a significant association between age and vitamin D level was found (r = 0.002). Conclusion: Our data suggests that various mechanisms could potentially contribute to the robust association of vitamin D with adiposity; in normal or near normal BMI, vitamin D status may not be correlated with age.

Item Type: Article
Additional Information: cited By
Uncontrolled Keywords: 25 hydroxyvitamin D, adolescent; adult; article; body distribution; body mass; concentration (parameters); female; human; major clinical study; male; vitamin blood level; vitamin D deficiency; vitamin supplementation, Adolescent; Adult; Age Factors; Body Mass Index; Bone Density; European Continental Ancestry Group; Female; Humans; Iran; Male; Middle Aged; Obesity; Sex Factors; Statistics as Topic; Vitamin D; Vitamin D Deficiency; Young Adult
Subjects: WA Public Health
QU Biochemistry > Nutrition.vitamins
Divisions: Faculty of Medicine > Department of Clinical Sciences > Department of Internal Medicine
Depositing User: zahra bagheri .
Date Deposited: 15 Aug 2017 08:02
Last Modified: 15 Aug 2017 08:02
URI: http://eprints.skums.ac.ir/id/eprint/3055

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