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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Demography. 2018 Apr;55(2):511–534. doi: 10.1007/s13524-018-0649-8

Table 1.

Characteristics of Women Age 18–44, by Union Status

Column A
Column B
Column C
Column D
All Women Married, no cohabitation Cohabitors (All) Single, currently dating
Background characteristics Mean Mean Mean Mean
Lived with both parents (reference)
Lived with both parents (reference) 61.0% 75.7% b 60.2% 57.9% a
Lived with single parent 16.6% 10.3% b 15.5% 19.8% a,b
Lived with step- & biological parent 17.2% 10.1% b 19.0% 16.7% a,b
Lived with no biological parents 5.2% 3.8% b 5.3% 5.5%
Parents not married at time of birth 23.8% 9.4% b 22.8% 29.3% a,b
Mother's education Less than high school 18.9% 20.4% 19.4% 17.7%
High school degree (reference) 31.2% 27.1% b 32.1% 31.3% a
Some college 28.5% 23.8% b 29.2% 28.9% a
College degree 21.4% 28.7% b 19.3% 22.2% a,b
Age at interview 27.09 28.84 b 27.34 26.22 a
Age at first sex with most recent partner
Mean 23.73 23.63 b 23.07 24.68 a
<18 8.2% 7.4% b 10.2% 5.7% b
18–20 25.6% 23.5% 25.6% 26.4%
21–24 (reference) 30.0% 35.1% 31.1% 27.0% a,b
25–29 20.8% 19.6% 22.4% 18.9% b
30+ 15.4% 14.4% b 10.7% 22.1% a,b
Race
White (reference) 58.8% 62.7% 64.7% 49.3% a,b
Black 18.2% 11.0% 12.6% 28.3% a,b
Hispanic 17.3% 16.9% 17.8% 16.6%
Other 5.7% 9.5% b 4.9% 5.8% a
Respondent’s education (at interview) Less than high school 12.9% 7.0% b 13.5% 13.9% a
High school degree 26.1% 16.6% b 25.9% 29.1% a,b
Some college (reference) 32.6% 27.1% 30.8% 36.9% a,b
College degree 28.3% 49.3% b 29.8% 20.1% a,b
Finished HS by first sex with most recent part 71.2% 80.0% b 68.8% 72.0% a,b
Relationship characteristics
Cohort of relationship start year
1996–2000 8.1% 15.2% 11.4% 1.6% a,b
2001–2003 14.9% 27.0% b 18.9% 5.7% a,b
2004–2006 25.8% 26.8% 29.2% 20.7% a,b
2007–2009 26.9% 19.4% 23.3% 34.2% a,b
2010–2012 24.3% 11.6% b 17.3% 37.8% a,b
Number of other sexual partners 5.39 2.42 b 5.41 6.24 a,b
Respondent previously cohabited 33.4% 13.0% b 32.5% 40.6% a,b
Respondent had child prior to union 18.5% 7.6% 17.1% 23.7% a,b
Respondent is ever pregnant during union 18.8% 17.9% 17.9% 20.3%
Time to marriage or cohabitation, in months 17.32 18.90 b 12.85 n/a
Share of sample 100.0% 9.0% 46.5% 44.5%
Observations 6,086 545 2,831 2,710

Source: 2006–10 and 2011–13 NSFG Female respondent file. Women between the ages of 18–44. Restricted to relationships that started between 1–10 years prior to the interview date.

"a"

Note: indicates significant difference from direct marriers

"b"

indicates significant difference from cohabitors at the p<.05 level.