Table 2.

Piecewise Constant Models Estimating Survival Time to a Second Birth

	Hazard Ratio	SE
Child has a disability	0.80*	0.07
Child’s gender = female	0.91*	0.04
Mother’s age at child’s birth = less than 20a	1.17***	0.07
Mother’s age at child’s birth = 30 and older	0.66***	0.06
Mother’s race = non-White	1.01	0.05
Mother’s education = high school degreeb	0.98	0.05
Mother’s education = less than a HS degree	1.23***	0.08
Mother worked (lagged)	0.81***	0.03
Mother was married (lagged)	2.65***	0.15
Birth covered by medicaid	1.32***	0.08
Year 3c	3.15***	0.15
Year 4	3.16***	0.19
Year 5	2.36***	0.17
Year 6	2.13***	0.22
Year 7	1.56***	0.18
Year 8	1.32	0.21
Year 9	1.11	0.19
Year 10	0.95	0.20
Year 11	0.88	0.20
Year 12	0.46*	0.18

Note: Data are weighted and adjusted for survey design.

^aReference is age 20 – 29.

^bReference is more than high school.

^cReference is Years 1 – 2.

^*p < .05.

^***p < .001.