Table 4.

Tobacco, alcohol and other illicit drug use by methamphetamine use pattern during pregnancy

	Methamphetamine use pattern during pregnancy
	Consistently high (n = 56)		Increasing (n = 18)		Stable low/moderate (n = 49)		Decreasing (n = 68)
	n	%	n	%	n	%	n	%
Tobacco
Use during pregnancy	46	82.1	16	88.9	42	85.7	53	77.9
Number of cigarettes/day	Mean	SD	Mean	SD	Mean	SD	Mean	SD
	9.70	10.65	6.45	5.83	6.77	7.93	6.14	6.64
	Median	Range	Median	Range	Median	Range	Median	Range
	6	0–47	5	0–20	3	0–33	4	0–23
Alcohol
Use during pregnancy	14a	25.0	6	33.3	19	38.8	36a	52.9
Ounces of absolute alcohol/day	Mean	SD	Mean	SD	Mean	SD	Mean	SD
	0.12	0.76	0.12	0.30	0.12	0.40	0.15	0.34
	Median	Range	Median	Range	Median	Range	Median	Range
	0.0	0–5.6	0.0	0–1.2	0.0	0–2.5	0.0	0–1.6
Marijuana
Use during pregnancy	19	33.9	6	33.3	14	28.6	29	42.7
Number of joints/day	Mean	SD	Mean	SD	Mean	SD	Mean	SD
	0.07	0.19	0.06	0.15	0.09	0.29	0.12	0.28
	Median	Range	Median	Range	Median	Range	Median	Range
	0.0	0–1.02	0.00	0–0.48	0.0	0–1.67	0.0	0–1.62
Mean number of drugs used	1.45	(SD = 0.91)	1.61	(SD = 0.92)	1.65	(SD = 0.97)	1.94	(SD = 1.16)

^aCH < D (P = 0.016)