. 2014 Jul 3;9(7):e100705. doi: 10.1371/journal.pone.0100705

Table 4. Associations between maternal factors during pregnancy and serum 25(OH)D levels after adjusting for confounders^a (n = 102).

Maternal factors	Serum 25(OH)D in the second trimester, nmol/L^a		Serum 25(OH)D in the third trimester, nmol/L^a
	β (95% CI)	p	β (95% CI)	p
Prepregnancy BMI, kgm⁻²	−0.06 (−0.74,0.62)	0.855	−0.40 (−1.37,0.57)	0.413
Maternal BMI, kgm⁻²	−0.20 (−0.90,0.49)	0.562	−0.68 (−1.69,0.33)	0.186
Multivitamin intake	9.16 (2.79,15.53)	0.005	13.65 (4.73,22.57)	0.003
Dietary calcium, mg/day	0.002 (−0.01,0.01)	0.706	−0.01 (−0.02,0.01)	0.281
Activity score, Mets (log unit)	−1.95 (−4.60,0.71)	0.148	2.18 (−2.20,6.55)	0.326

BMI = body mass index, Mets = metabolic equivalents. Bold print shows significant p<0.05.

Adjusted for maternal age and gestational age.

Table 4. Associations between maternal factors during pregnancy and serum 25(OH)D levels after adjusting for confoundersa (n = 102).