TABLE 3.

Average Maternal Drug Use During Pregnancy by Heavier, Lighter, and Non-MDMA Exposure

Drug, per wk	MDMA Status						χ2a	P
	Heavier (n = 13)		Lighter (n = 15)		None (n = 68)
	Mean (SD)	Median (Range)	Mean (SD)	Median (Range)	Mean (SD)	Median (Range)
Cigarettes	50.2 (39.9)	45.0 (0–118)	23.8 (36.8)	9.6 (0–123)	32.5 (49.1)	13.19 (0–280)	4.63	.10
Alcohol, units	12.5 (16.0)	4.9 (0.06–51)	6.06 (4.52)	5.25 (0–14.7)	6.6 (12.9)	2.3 (0–84)	4.25	.12
Marijuana, joints	9.9 (24.2)	0.25 (0–87.5)	9.51 (14.79)	3.40 (0.01–3.4)	6.3 (15.0)	0.06 (0–88)	6.48	.04
MDMA, tablets	1.3 (1.4)	0.75 (0.17–4.5)	0.07 (0.04)	0.06 (0.01–0.14)	—	—	—	—
Cocaine, doses	0.15 (0.28)	0.05 (0–1.0)	0.24 (0.64)	0.005 (0–2.4)	0.02 (0.1)	0 (0–0.8)	28.6	.0001b
Crack, rocks	0.04 (0.11)	0 (0–0.37)	0.01 (0.04)	0 (0–0.17)	1.0 (5.0)	0 (0–38)	0.43	.81
Amphetamine, doses	0.03 (0.10)	0 (0–0.33)	0.05 (0.14)	0 (0–0.52)	0.0003 (0.001)	0 (0–0.01)	4.8	.09
Mushrooms, doses	0.02 (0.07)	0 (0–0.25)	0.003 (0.007)	0 (0–0.02)	0 (0)	0 (0–0)	8.2	.02
Tranquilizers, doses	0.23 (0.83)	0 (0–3)	0.003 (0.01)	0 (0–0.04	0.4 (1.9)	0 (0–11)	0.27	.87
Opiates, doses	0.25 (0.86)	0 (0–3.13)	0.02 (0.08)	0 (0–0.31)	0.2 (1.2)	0 (0–8)	0.70	.71
LSD, doses	0	0	0.03 (0.07)	0 (0–0.25)	0 (0)	0 (0–0)	16.5	.0003
Ketamine	0.13 (0.49)	0 (0–1.75)	0.001 (0.005)	0 (0–0.02)	0	0	5.0	.08

^aKruskal-Wallis test.

^bPost hoc test Lighter group differ from None (P < .02).