Table 4.

Effects on private coverage and Medicare-only coverage.

	Dependent Variable
	Medicaid coverage	Private supplemental insurance coverage	Medicare coverage only
	(1)	(2)	(3)
Expansion x Post	0.018***	−0.002	−0.016***
	(0.006)	(0.005)	(0.005)
Observations	347,781	347,781	347,781
$\stackrel{\_}{Y}$, Pre, exp	0.408	0.278	0.300

Notes: The sample consists of respondents to the 2010-17 ACS who are age 65 or older and income-eligible for Medicaid according to the criteria in their state of residence. In column (2), the dependent variable equals one if the respondent has private supplemental insurance coverage (and no Medicaid), and in column (3), the dependent variable equals one if the respondent has no supplemental insurance coverage of any type. The regressions include controls for black race, other race, Hispanic ethnicity, female, naturalized citizenship status, and education (high school diploma, some college, and college degree or more), age fixed effects, state fixed effects, and year fixed effects. Sample weights are used in model estimation. Standard errors clustered by state are reported in parentheses. Statistical significance is indicated by

^***for the .01 level,

^**for the .05 level and

^*for the .10 level.