Table 1.

Demographics of Women on MMT and BMT

Variables	MMT Group (n = 136)			BMT Group (n =16)
	n	Mean	SD	N	Mean	SD	P
Maternal Dose (mg) on Admission*	136	131.3	69.9	16	18.6	14.3	-----
Maternal Age in Years	135	25.4	4.0	16	24.4	3.5	0.30
Gravidity with Current Pregnancy	135	3.2	2.4	16	2.8	1.8	0.44
Parity Prior to Delivery	134	2.5	0.99	16	1.8	0.98	0.15
GA When Prenatal Care Started in Weeks	113	13.5	6.9	10	14.2	9.2	0.79
Number of Prenatal Visits Attended	6	7.2	4.1	1	13		0.24
Reported Use of Tobacco:	131 (97%)			15(93.8%)			0.76
None	22 (16.8%)			3 (20.0%)
0–1/2 PPD	47 (35.9%)			6 (40.0%)
1/2 PPD-1 PPD	38 (29.0%)			4 (26.7%)
>1 PPD	24 (18.3%)			2 (13.3%)
Reported Use of Alcohol	10 (8.3%)			1 (9.1%)			0.89
Use of SSRIs	13 (10.1%)			1 (8.3%)			0.67
Use of Benzodiazepines (prescribed or illicit)	21 (16.2%)			2 (16.7%)			0.76
Use of Marijuana	50 (42.7%)			2 (18.2%)			0.05
Use of Other Opioids	128 (94%)			14 (93%)			0.31

GA = gestational age; PPD = pack per day; SSRIs = selective serotonin reuptake inhibitors. Parametric variables (age, gravida, parity, prenatal visit measures) were analyzed with independent sample t-tests; X² was used for the remaining variables.

^*dose is not comparable between methadone and buprenorphine so is not statistically compared.