Purposed: This study examined the associations between 25-hydroxyvitamin D [25(OH)D] and common anthropometric parameters.
Methods: The data were derived from the National Health and Nutrition Examination Survey from 2001 through 2004. We divided all subjects into two groups with a cut-off point for body mass index set at 30. The primary outcome was the potential relationship between the anthropometric parameters and 25(OH)D status.
Results: A positive association was found between the 25(OH)D levels and calf circumference (CC) in all of the designed models (P < 0.001). The adjusted β coefficient of the 25(OH)D levels for the CC was 0.542 (95% confidence intervals (CI), 0.376-0.708, P < 0.001) after adjusting for all covariates. An increasing linear tendency for 25(OH)D was present in non-obese participants. Additionally, subjects in the higher tertiles of CC tended to have higher 25(OH)D levels with a significant correlation (P for trend <0.001).
Conclusion: A positive association between 25(OH)D concentration and CC in non-obese individuals was observed.
Keywords: Anthropometric parameters; Obesity; Skeletal muscle; Vitamin D.
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