Serum vitamin D levels/ng/ml

Case

Control

p-value

N = 75

%

N = 75

%

Normality: 30 - 100 ng/ml

20

26.6

55

73.3

0.0001

Insufficiency: 20 - 30 ng/ml

25

33.3

14

18.6

0.04

Deficiency: 10-20 ng/ml

30

40

6

8

0.0001