Table 3b.

Associations between maternal binge drinking in pregnancy and DAP¹ IQ scores, Denmark 2003–2008

	Crude			Adjusted for core confounders2		Adjusted for potential confounders3
	Mean score	Mean difference	95% CI	Mean difference	95% CI	Mean difference	95% CI
Binge drinking in pregnancy
No	99.32	Reference	-	Reference	-	Reference	-
Yes	100.28	0.96	[−0.81; 2.74]	0.56	[−1.04; 2.16]	0.15	[−1.49; 1.80]
p-value4	0.286			0.495		0.854
Number of binge drinking episodes in pregnancy
0	99.32	Reference	-	Reference	-	Reference	-
1	100.32	1.00	[−0.95; 2.95]	0.41	[−1.32; 2.15]	0.15	[−1.62; 1.91]
2	100.18	0.87	[−1.63; 3.38]	0.62	[−1.61; 2.85]	−0.24	[−2.58; 2.10]
3+	100.25	0.94	[−2.50; 4.37]	1.20	[−2.09; 4.49]	0.94	[−2.44; 4.32]
p-value	0.766			0.880		0.930
Timing of binge drinking episodes in pregnancy [gestational week)
No binge drinking	99.32	Reference	-	Reference	-	Reference	-
1–2	100.68	1.37	[−1.16; 3.89]	0.83	[−1.50; 3.16]	0.52	[−1.90; 2.95]
3–4	99.70	0.39	[−2.12; 2.89]	−0.22	[−2.42; 1.98]	−0.67	[−2.89; 1.56]
5–8	102.41	3.10	[0.57; 5.62]	2.17	[−0.23; 4.58]	2.04	[−0.35; 4.43]
9+	99.97	0.66	[−1.96; 3.27]	0.97	[−1.49; 3.43]	0.45	[−2.10; 3.01]
Multiple episodes	99.73	0.41	[−2.18; 3.01]	0.53	[−1.80; 2.85]	−0.02	[−2.46; 2.42]
p-value	0.265			0.538		0.497

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 average weekly alcohol intake, maternal age, parity, prenatal and postnatal marital status, postnatal parental smoking, maternal pre-pregnancy BMI, the child’s sex, 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 levels of average alcohol intake.