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Table 4 Prevalence of vitamin D insufficiency by geographical region and gender

From: Regional variation and determinants of vitamin D status in sunshine-abundant Thailand

Regions

Age, yrs (range)

Serum 25(OH)D levels

     
  

< 75 nmol/L

 

< 50 nmol/L

 
  

Men

Women

Total

Men

Women

Total

Bangkok

15 - 93

66.7%

75.5%

64.6%

10.8%

24.2%

14.3%

Central

15 - 91

36.2%

59.2%

43.1%

2.1%

11.4%

6.5%

North

15 - 98

27.9%

50.8%

39.1%

0.9%

6.5%

4.3%

Northeast

15 - 91

25.1%

51.0%

34.2%

0.1%

3.7%

2.8%

South

15 - 92

29.4%

65.8%

43.8%

1.5%

12.9%

6.3%

Total

15 - 98

32.6%

57.3%

45.2%

1.9%

9.3%

5.7%