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Correlation between the change in waist-to-hip ratio and the change in serum 25OHD at 12 weeks. A significant correlation between change (12 week-baseline) in waist-to-hip ratio and change in serum 25OHD was shown (simple linear regression R2 = 0.205, F (1, 21) = 5.40, P = 0.02). Placebo (○) and vitamin D (●) groups.
