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Table 3 Vitamin D status and clothing, sunlight exposure and calcium levels

From: Vitamin D status among adults in the Aegean region of Turkey

   25(OH)D status   
  Deficient
(<20 ng/mL)
Insufficient
(20-29.99 ng/mL)
Sufficient
(≥30 ng/mL)
P*
Wearing clothes which restrict exposure to sunlight     p = 0.032
Yes 77.2% 14.6% 8.3%  
No 71.3% 11.5% 17.2%  
Sunlight exposure     p = 0.570
<8 points 82.4% 11.8% 5.9%  
8-11 points 78.2% 10.9% 10.9%  
≥12 points 71.8% 15.9% 12.3%  
Daily calcium intake     p = 0.880
500 mg/day 76.0% 14.7% 9.3%  
<500 mg/day 74.8% 13.9% 11.3%  
  1. *Chi-square test