Table 3.

ODDS Ratio for development of VDD

Variable	Odds ratio	95 % CI
Female sex	1.57	0.76–3.24
Breast feeding	0.74	0.35–1.57
Serum Hb level	3.60	1.77–7.35*
Vitamin D tested in winter/spring	11.58	5.12–26.23*

* p value <0.001