Table 1.

Descriptive Statistics for Woman and Relationship Characteristics

Variable	N	%	M	SD	Range
Woman characteristics
N (women)	893
Intercourse prior to age 17	234	26.2
Two or more sexual partners	548	61.4
Previous pregnancies			0.30	0.60	0–2
Childhood disadvantage index			1.29	1.12	0–4
Mother first birth <19	322	36.1
Mother <high school education	77	8.6
Non-two-parent household	425	47.6
Public assistance	328	36.7
African American	309	34.6
Highly religious	514	57.6
Receiving public assistance	232	26.0
High school GPA			3.11	0.61	0–4.17
Pregnancy avoidance			4.78	0.54	1–5
Frequency of condom usea			.42	.39	.00–1.00
Number of weekly surveys			36.5	34.1	1–146
Number of relationships			2.92	2.8	1–23
Relationship characteristics
N (relationships)	2,547
Relationship length (months)			9.78	16.89	0.08–131.9
Participant age (at relationship start)			19.89	0.94
Age differenceb			2.22	3.56	−5.9 – 33.2
Couple had a shared birth	194	7.6
Couple had shared pregnancy	362	14.2
Partner characteristics
Education (years)			12.50	1.09	10–14
African American	917	36.0
Relationship type (# weeks)
Casual	2,354	7.2
Uncommitted dating	3,153	9.6
Committed dating	16,270	49.7
Cohabiting	5,257	16.1
Engaged	4,092	12.5
Married	1,610	4.9
Number of weekly surveys			12.77	22.89	1–146

^aProportion of condom-use weeks by total intercourse weeks.

^bPartner age minus participant age, in years.