Table A3-2.

Unintended birth relative to Intended birth with Basic Controls and Heterogeneity Correction using NLSY79 (relative risk ratios with standard errors in parentheses)

Variable	Model 1 1st Birth	Model 2 2nd Birth	Model 3 3rd Birth
Prior birth intendedness
First birth unintended		2.43*** (8.5)	-
First and second birth unintended		-	3.39*** (.2)
First birth unintended, second birth intended		-	1.57** (.1)
First birth intended, second birth unintended		-	1.75*** (.1)
Age	.00*** (.0)	.93 (.1)	1.11 (.1)
Age-squared	1.88*** (.0)	1.00 (.0)	1.00 (.0)
Age at first birth (ref: 20–25 years)
Under 20 years		.91 (.1)	1.07 (.2)
Over 25 years		.51 (.1)	.60** (.2)
Race (ref: White)
Black	.99 (.1)	1.79*** (.2)	1.95*** (.1)
Hispanic	.55* (.1)	.89 (.1)	.99 (.1)
Mother’s education (ref:did not complete HS)
High school graduate	.23*** (.2)	.43** (.3)	.94 (.2)
Some college	1.17 (.1)	.99 (.1)	1.08 (.2)
College graduate	3.35*** (.2)	2.07** (.3)	1.01 (.2)
Family background (ref: Biological parents)
Step family	.83 (.1)	1.03 (.1)	1.18 (.2)
Any other family	.70** (.1)	1.00 (.1)	1.23 (.1)
Respondent’s education (ref: Less than high school)
High school graduate	1.38* (.1)	.79 (.1)	.99 (.1)
Some college	2.77*** (.2)	.89 (.2)	.77 (.2)
College degree		.62 (.3)	.59 (.3)
Missing education	1.38* (.2)	1.22 (.3)	3.00 (1.1)
Months since last birth (ref: 24–48 months)
0–23 months		2.03*** (.1)	1.35** (.1)
>48 months		1.46 (.2)	.52*** (.2)