Vitamin D status in early childhood is not associated with cognitive development and linear growth at 6–9 years of age in North Indian children: a cohort study

Table 2 The association between baseline Vitamin D status and cognitive scores at follow up in North Indian children 6 to 9 years

	WISC-IV^INDIA and CVS z-score		NEPSY z-score		Global BRIEF score
	Unadjusted β coefficient (95% CI)	Adjusted β coefficient (95% CI)^a	Unadjusted β coefficient (95% CI)	Adjusted β coefficient (95% CI)^a	Unadjusted β coefficient (95% CI)	Adjusted β coefficient (95% CI)^a
Vitamin D sufficient	Reference		Reference		Reference
Vitamin D inadequate	0.03 (−0.17 to 0.23)	−0.12 (−0.30 to 0.05)	−0.01 (−0.21 to 0.19)	−0.15 (−0.33 to 0.04)	0.21 (−2.10 to 2.48)	0.87 (−1.40 to 3.14)
Vitamin D deficient	0.02 (− 0.16 to 0.22)	− 0.13 (− 0.29 to 0.04)	−0.02 (− 0.21 to 0.17)	−0.16 (− 0.34 to 0.02)	−1.10 (−3.21 to 1.05)	−0.38 (− 2.53 to 1.77)

^aadjusted for log folate, log soluble transferrin receptor and log homocysteine level at baseline, and the wealth index, paternal occupational status and maternal education at follow-up and intervention group

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