Table 1.

Demographic Characteristics of Patients at Enrollment

Demographic Characteristic	Pregnant (n=40)	Non-Pregnant (n=37)	P value
Age
Mean (SD)	26.5 (5.1)	26.3 (4.6)
Range	18.0–35.0	18.0–35.0	0.84a
BMI at first study visit
Mean (SD)	27.0 (5.3)	27.8 (7.3)	0.59a
Nugent score at enrollment	1.0 (0 – 10)	3.5 (0 – 10)	0.1
Median (range)
Race
White	25 (62.5)	15 (40.5)	0.11b
Black	6 (15.0)	10 (27.0)
Asian	0 (0.0)	2 (5.4)
American Indian	1 (2.5)	0 (0.0)
Hispanic or Latina	7 (17.5)	10 (27.0)
Other	1 (2.5)	0 (0.0)
Marital Status
Single	14 (35.0)	27 (73.0)	0.0005b
Living with Partner	5 (12.5)	2 (5.4)
Married	21 (52.5)	6 (16.2)
Divorced	0 (0.0)	2 (5.4)
Education Level
Some high school	0 (0.0)	2 (5.4)	0.12c
High school graduate/GED	14 (35.0)	9 (24.3)
1–3 Years College	12 (30.0)	9 (24.3)
College Graduate	6 (15.0)	13 (35.1)
Graduate work	8 (20.0)	4 (10.8)
Employment Status
Unemployed	14 (35.0)	11 (29.7)	0.67b
Full-time	20 (50.0)	16 (43.2)
Part-time	6 (15.0)	8 (21.6)
Other	0 (0.0)	1 (2.7)
Unknown	0 (0.0)	1 (2.7)
Annual family income
< $10,000	6 (15.0)	6 (16.2)	0.14c
$10,000-$24,999	3 (7.5)	11 (29.7)
$25,000-$49,999	8 (20.0)	8 (21.6)
$50,000-$74,999	10 (25.0)	6 (16.2)
$75,000 or more	7 (17.5)	4 (10.8)
Unknown	6 (15.0)	2 (5.4)
Insurance
Private	18 (45.0)	21 (56.8)	0.10b
Medicaid	21 (52.5)	11 (29.7)
Uninsured	1 (2.5)	4 (10.8)
Other	0 (0.0)	1 (2.7)
Average drinks/week (past 3 months)
0 drinks	36 (90.0)	23 (62.2)	0.01b
1–3 drinks	3 (7.5)	11 (29.7)
> 3 drinks	1 (2.5)	3 (8.1)
Tobacco use (past 3 months)
0 ppd	36 (90.0)	33 (89.2)	0.87b
< ½ ppd	3 (7.5)	2 (5.4)
> ½ ppd	1 (2.5)	2 (5.4)
Marijuana use (past 3 months)
0 times/week	38 (95.0)	34 (91.9)	0.67b
1–3 times/week	2 (5.0)	3 (8.1)
Number of times pregnant
Median (Range)	2 (0–6)	0 (0–5)	0.0004d

^aT-test,

^bFisher’s exact test,

^cChi-square test,

^dWilcoxon rank sum test