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Title

The Relationship between Serum Vitamin D Levels and Risk of Abdominal Obesity: A Systematic Review and Dose-Response Meta-Analysis of Epidemiologic Studies

Pages

  59-78

Abstract

 Background: Although the relation of serum vitamin D levels with Abdominal Obesity has been investigated by previous observational studies, the results are inconsistent. In the current study, a dose-response metaanalysis was conducted on Epidemiologic Studies that evaluated this association in adults. Methods: We performed a systematic search of all published articles, up to May 2020, in five electronic databases. A total of 41 observational studies that reported odds ratios (ORs) or relative risks (RRs) with 95% confidence intervals (CIs) for Abdominal Obesity in relation to serum vitamin D levels in adults were found. Results: Meta-Analysis on 36 cross-sectional studies (combining 44 effect sizes) with 257699 participants, illustrated that the highest serum vitamin D level in comparison with the lowest serum vitamin D level was significantly related to 23% decreased odds of central obesity (OR=0. 77; 95%CI: 0. 71-0. 83). This inverse association was also significant in almost all subgroups based on different covariates. Based on dose-response analysis, each 25 nmol/l increase in serum vitamin D levels, was related to 8% reduced risk of central obesity (OR=0. 92; 95%CI: 0. 85, 0. 99). After limiting the analysis to 23 effect sizes from 17 studies with representative population (242135 participants), the same results were obtained (OR=0. 79; 95%CI: 0. 71-0. 87). Based on dose-response analysis on studies with representative populations, each 25 nmol/l increase in blood vitamin D levels was linked to 10% decreased central adiposity risk(OR=0. 90; 95%CI: 0. 82, 0. 99). Conclusion: In this Meta-Analysis of Epidemiologic Studies, we demonstrated an inverse significant relation between serum vitamin D levels and risk of central obesity in adults, in a dose-response manner. The same findings were obtained in representative populations.

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    APA: Copy

    Hajhashemy, Zahra, MOSLEMI, ELHAM, & SANEEI, PARVANEH. (2021). The Relationship between Serum Vitamin D Levels and Risk of Abdominal Obesity: A Systematic Review and Dose-Response Meta-Analysis of Epidemiologic Studies. JOURNAL OF DIABETES AND METABOLIC DISORDERS, 21(2 ), 59-78. SID. https://sid.ir/paper/412088/en

    Vancouver: Copy

    Hajhashemy Zahra, MOSLEMI ELHAM, SANEEI PARVANEH. The Relationship between Serum Vitamin D Levels and Risk of Abdominal Obesity: A Systematic Review and Dose-Response Meta-Analysis of Epidemiologic Studies. JOURNAL OF DIABETES AND METABOLIC DISORDERS[Internet]. 2021;21(2 ):59-78. Available from: https://sid.ir/paper/412088/en

    IEEE: Copy

    Zahra Hajhashemy, ELHAM MOSLEMI, and PARVANEH SANEEI, “The Relationship between Serum Vitamin D Levels and Risk of Abdominal Obesity: A Systematic Review and Dose-Response Meta-Analysis of Epidemiologic Studies,” JOURNAL OF DIABETES AND METABOLIC DISORDERS, vol. 21, no. 2 , pp. 59–78, 2021, [Online]. Available: https://sid.ir/paper/412088/en

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