Table 4.

Cox proportional-hazards models predicting women’s risk of first birth by demographic characteristics and birth cohort

	Birth Cohort
	1937–60		1961–71		1972–95
	Odds ratio	Sig.	Odds ratio	Sig.	Odds ratio	Sig.
Race/ethnicity
White	1.00		1.00		1.00
Hispanic	1.30	***	1.44	***	1.82	***
Black	1.26	***	1.43	***	2.05	***
Other	0.79	*	0.89		1.16
Mother’s education
Less than HS diploma	1.00		1.00		1.00
HS diploma or GED	0.75	***	0.70	***	0.66	***
Some college	0.65	***	0.48	***	0.48	***
Bachelor’s degree or more	0.45	***	0.38	***	0.24	***
Family structure
Two parents from birth	1.00		1.00		1.00
Anything else	1.07		1.20	***	1.58	***
Religious attendance
Never	1.00		1.00		1.00
Less than once per month	0.99		0.86		0.69	**
1–3 times per month	0.98		0.90		0.82
Once per week or more	0.99		0.89		0.75	***

Asterisks indicate statistical significance at

^*p<.05,

^**p<.01,

^***p<.001.