Table III.

Group Differences in Bayley-III Cognitive Scores by Sex

	Boys			Girls
	Estimate	95% CI [upper, lower]	p	Estimate	95% CI [upper, lower]	p
Prenatal opioid exposure group	−5.82	[−9.92, −1.72]	.005	−0.03	[−4.48, 4.41]	.99
Prenatal alcohol exposure group	−3.92	[−7.83, −0.01]	.05	−3.27	[−7.57, 1.03]	.14
Prenatal tobacco exposure group	−3.22	[−7.25, 0.81]	.12	−0.76	[−5.12, 3.60]	.73
Prenatal cannabis exposure	1.38	[−0.36, 3.13]	.12	1.38	[−0.36, 3.13]	.12
Age	0.04	[−0.05, 0.14]	.38	0.04	[−0.05, 0.14]	.38
Maternal education	0.52	[−0.47, 1.52]	.30	0.48	[−.047, 1.52]	.30
Sex	−0.31	[−5.30, 4.69]	.90	0.31	[−4.69, 5.30]	.90
Opioids × Sex	−5.78	[−11.64, 0.07]	.05	5.78	[−0.07, 11.64]	.05
Alcohol × Sex	−.065	[−6.21, 4.92]	.82	0.65	[−4.92, 6.22]	.82
Tobacco × Sex	−2.46	[−8.11, 3.20]	.40	2.46	[−3.20, 8.11]	.40

Note. Linear mixed models analysis with pooled group estimates for n = 747 test administrations (n = 375 children) based on 200 imputed datasets. The non-exposed group is set to zero in the analyses. Sex was set to zero for boys and girls, respectively, in two separate analyses, yielding group comparisons for each sex. Estimates are presented as Bayley-III standardized scores.