Table 4.

Odds ratios from logistic regression models predicting likelihood of marrying from start of cohabiting union: women aged 18–44 whose relationship began within 10 years of the interview

	Model A	Model B	Model C
Moved in together within one year	0.835 †	0.938	0.848 †
Duration since move-in (months)	1.015 *	1.019 **	1.019 **
Duration since move-in squared (months)	1.000 **	1.000 **	1.000 **
Family structure at age 14 (Ref=Lived with both parents)
Lived with single parent		0.766 *	0.824
Lived with step parent		0.830	0.813 †
Lived with no biological parent		1.237	1.481 †
BACKGROUND CHARACTERISTICS
Education at move-in date (Ref=Some College)
Less than high school		0.603 ***	0.581 ***
High school		0.870	0.820 †
College		1.948 ***	1.790 ***
Race (Ref=White)
Black			0.605 ***
Hispanic			0.631 **
Other			0.606 *
Year began cohabiting			0.965 **
RELATIONSHIP HISTORY
Number of sexual partners			0.999
Respondent had prior cohabiting unions			1.030
Respondent had a child prior to current union			1.005
Respondent was pregnant (time-varying)			1.720 ***
df	3	9	17
Number of Observations	74,383	78,319	74,383

Source: 2006–13 NSFG Female respondent file. Women ages of 18–44 whose most recent sexual relationship was coresidential.

Note: The reference category includes those who remain in cohabiting relationships or had broken up by the time of interview. Only 278 of the 2,554 women who entered cohabiting unions had broken up with their partners by the time of the interview, too few to analyze separately. Duration is measured as months since move-in. Underlined terms indicate significant differences between breaking up and marrying at the p<.05 level.

^***p ≤.001

^**p ≤01

^*p ≤.05

^†p≤.10.

Note: Model run with an indicator for negative duration recode produced no significant difference between those reporting positive durations and those reporting negative durations between first sex and move-in, which were then recoded based on NSFG instructions.