Table 4b.

Associations between maternal alcohol intake in pregnancy and DAP¹ IQ scores by prenatal binge drinking status.

Average no. drinks/week in pregnancy	Mean score	Crude		Adjusted for core confounders2		Adjusted for potential confounders3
		Mean Difference	95% CI	Mean difference	95% CI	Mean difference	95% CI
No binge drinking (n = 472)
0	98.51	references	-	references	-	references	-
1–4	100.38	1.87	[−1.08; 4.82]	1.87	[−0.75; 4.49]	1.72	[−0.96; 4.39]
5–8	100.73	2.22	[−1.33; 5.72]	3.58	[0.23; 6.93]	4.07	[0.47; 7.67]
9+	96.91	−1.60	[−9.39; 6.18]	−1.56	[−8.80; 5.68]	−1.44	[−10.26; 7.37
p value4		0.431		0.127		0.113
Binge drinking (n = 1061)
0	100.43	references	-	references	-	references	-
1–4	100.82	0.38	[−1.82; 2.58]	0.07	[−1.80; 1.94]	0.32	[−1.61; 2.26]
5–8	94.40	−6.03	[−10.67; −1.40]	−3.53	[−7.10; 0.05]	−2.91	[−6.31; 0.50]
9+	84.31	−16.12	[−23.40; − 8.84]	−14.44	[−19.88; −8.99]	−12.70	[−18.36; −7.05]
p value		<0.001		<0.001		<0.001

¹Draw a Person Intellectual Ability Test for Children, Adolescents, and Adults

²Parental education, maternal IQ, prenatal maternal smoking, the child’s sex and age, and tester.

³Parental education, maternal IQ, prenatal maternal smoking and binge drinking, maternal age, parity, prenatal and postnatal marital status, postnatal parental smoking, maternal pre-pregnancy BMI, the child’s sex and age, health status, hearing and vision on the day of testing, family/home environment, and tester.

⁴P value for the hypothesis of no difference in DAP scores across binge categories.