Table 1.

Sociodemographic and Pregnancy-Related Characteristics of Sample (n = 744)

Characteristic	Numbera	Percent
Race
African American	428	57.5
Caucasian	316	42.5
Residence
Rural	439	59.0
Urban	305	41.0
Education
Less than high school	311	41.8
High school graduate	360	48.4
Vocational or some college	58	7.8
Bachelor's degree	8	1.1
Graduate degree	7	0.9
Marital status
Never married	523	70.3
Married	160	21.5
Separated or divorced	60	8.1
Widowed	1	0.1
Trimester began prenatal careb
First	580	80.8
Second	110	15.3
Third	9	1.3
No prenatal care	19	2.6
Previous live births
Yes	428	57.8
No	313	42.2
History of serious medical condition(s)
None	508	68.3
One	192	25.8
Two	43	5.9
Months of full-time work in last 12 Monthsc
Mean ± standard deviation	4.5 ± 4.5
Median	3.0
Age in years
Mean ± standard deviation	22.2 ± 5.2
Median	21.0

^aMissing data accounts for column numbers that do not add up to the total sample size.

^bTrimester of prenatal care is based on self-report.

^cFull-time work is 35 hours or more per week.