Table 3.

Logistic regression analysis of factors associated with serum 25(OH)D status

Variables	ORa	95 % CI	p-value
Dressing style
Covered	Ref
Uncovered	5.1	2.26–11	<0.0001
Maternal multivitamin use
No	Ref
Yes	2.69	1.28–5.66	0.009
Season of blood sampling
Winter	Ref
Summer	5	2.32–10.7	<0.0001

OR, odds ratio; CI, confidence interval; Ref, reference category.