Table 4. Comparison of OLS and propensity score matching results estimating the effect of a nonmarital birth on age 40 self-assessed health (imputed data).

	Age 40 Self-Assessed Health
	OLS	Propensity Score Matching
		ATT
TOTAL SAMPLE
Nonmarital first birth (0 = first birth while married)	-.142* (.047)	-.158* (.067)
Treatment observations	---	1,287
Control observations	---	2,609
Total n	3,896	3,896
BLACK AND WHITE WOMEN ONLY
Nonmarital first birth (0 = first birth while married)	-.181*** (.053)	-.212*** (.065)
Treatment observations	---	1055
Control observations	---	2,031
Total n	3,086	3,086

Notes:

^*p < .05;

^**p <.01;

^***p < .001 (two-tailed tests);

Standard errors in parentheses;

ATT = average treatment effect for the treated.