Table 6. Comparison of OLS and propensity score matching results estimating the effect of union transitions with age 40 self-assessed health among women who had a nonmarital first birth (imputed data).

	Age 40 Self-Assessed Health
	Total Sample		Black Women
	OLS	Propensity Score Matching	OLS	Propensity Score Matching
		ATT		ATT
PANEL A
Union historya
Married biological father and it endured	.327 (.104)**	.273 (.131)*	.341 (.141)*	.154 (.148)
Treatment observations	---	261	---	150
Control observations	---	1,014	---	649
Total n	1,275	1,275	799	799
PANEL B
Union historya
Married new partner and it ended	NA	NA	.318 (.148)*	120 (.206)
Treatment observations	NA	NA	--	90
Control observations			--	709
Total n			799	799

Notes:

^*p < .05;

^**p <.01;

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

Variance of the MI estimator in parentheses;

ATT = average treatment effect for the treated;

^aCompared to continually never-married and unpartnered women.