. 2020 Dec 8;3(12):e2026018. doi: 10.1001/jamanetworkopen.2020.26018

Table 3. Effect of Vitamin D₃ Supplementation During Pregnancy on the Cognitive Composite Score of the Bayley-III Test.

Outcome	Vitamin D₃ dose, mean (SD)		Unadjusted (n = 503)		Adjusted (n = 501)^a
Outcome	High (n = 245)	Standard (n = 258)	Effect, β (95% CI)	P value	Effect, β (95% CI)	P value
Cognitive score	104.7 (9.5)	104.5 (9.5)	0.24 (−1.42 to 1.89)	.78	0.34 (−1.32 to 1.99)	.70
Girls	105.6 (9.6)	105.4 (10.3)	0.15 (−2.35 to 2.64)	.91	0.15 (−2.39 to 2.69)	.91
Boys	104.0 (9.3)	103.5 (8.4)	0.46 (−1.71 to 2.63)	.68	0.79 (−1.40 to 2.98)	.48

^{^a}

Adjusted for maternal preintervention serum vitamin D₃ levels, n-3 long-chain polyunsaturated fatty acid RCT allocation, season of birth, and for overall analyses additionally for sex. Two mothers were missing preintervention serum vitamin D₃ levels.

Table 3. Effect of Vitamin D3 Supplementation During Pregnancy on the Cognitive Composite Score of the Bayley-III Test.

Table 3. Effect of Vitamin D₃ Supplementation During Pregnancy on the Cognitive Composite Score of the Bayley-III Test.