Table 2.

Prenatal Vitamin D Quartiles and ITSEA Scores at Age 1 in the NEST Cohort

ITSEA Domain	Maternal Race	Vitamin D Quartile	Beta Estimate	95% Confidence Interval
Internalizing	White	1st	0.099	−0.164	0.362
		2nd	0.016	−0.132	0.164
		3rd	−0.032	−0.162	0.097
	Black	1st	−0.342	−0.574	−0.110
		2nd	−0.358	−0.604	−0.112
		3rd	−0.269	−0.543	0.006
	Hispanic	1st	−0.105	−0.293	0.084
		2nd	−0.162	−0.350	0.027
		3rd	−0.171	−0.362	0.020
Externalizing	White	1st	0.018	−0.239	0.274
		2nd	0.043	−0.101	0.188
		3rd	−0.065	−0.192	0.061
	Black	1st	−0.013	−0.344	0.317
		2nd	0.031	−0.320	0.381
		3rd	0.143	−0.247	0.533
	Hispanic	1st	0.054	−0.162	0.269
		2nd	−0.049	−0.264	0.167
		3rd	0.059	−0.159	0.227
Dysregulation	White	1st	0.101	−0.131	0.332
		2nd	0.035	−0.096	0.165
		3rd	−0.106	−0.220	0.009
	Black	1st	−0.166	−0.438	0.105
		2nd	−0.058	−0.345	0.230
		3rd	−0.143	−0.463	0.178
	Hispanic	1st	0.121	−0.028	0.270
		2nd	−0.016	−0.165	0.133
		3rd	0.010	−0.141	0.160
Competence	White	1st	−0.172	−0.486	0.141
		2nd	0.045	−0.131	0.222
		3rd	0.099	−0.055	0.253
	Black	1st	0.090	−0.336	0.516
		2nd	0.110	−0.341	0.562
		3rd	−0.023	−0.526	0.480
	Hispanic	1st	−0.103	−0.340	0.134
		2nd	0.140	−0.097	0.377
		3rd	0.005	−0.234	0.245
ASD Social Competence	White	1st	−0.736	−3.717	2.244
		2nd	−0.151	−1.831	1.530
		3rd	0.080	−1.389	1.548
	Black	1st	3.191	−0.237	6.619
		2nd	2.657	−0.975	6.289
		3rd	2.096	−1.951	6.144
	Hispanic	1st	−1.453	−3.482	0.577
		2nd	−0.004	−2.030	2.022
		3rd	0.183	−1.918	2.284
ASD Problem Behavior	White	1st	0.018	−2.066	2.101
		2nd	0.529	−0.645	1.704
		3rd	−0.804	−1.830	−0.804
	Black	1st	−2.936	−4.881	−0.991
		2nd	−2.570	−4.631	−0.510
		3rd	−1.996	−4.292	0.300
	Hispanic	1st	−0.413	−2.307	1.481
		2nd	0.407	−1.486	2.300
		3rd	−0.574	−2.491	1.343

^*Results adjusted for maternal education, maternal age, parity, pre-pregnancy BMI, prenatal vitamin use, smoking during pregnancy, marital status, infant gender, infant age at assessment, and season of blood draw.

^*4th quartile of 25(OH)D is referent for all estimates.