Table A2.

Insurance by Income in CPS

	(1)	(2)	(3)	(4)	(5)	(6)
	Uninsured	ESHI	Medicaid	Medicare	Military	Private
Patient’s Zip Code in First (Lowest) Income Quartile (15% of sample)
Ma* After	−0.1232 [−0.1612,−0.0852]***	−0.0206 [−0.0440,0.0027]*	0.1396 [0.1172,0.1620]***	−0.0007 [−0.0178,0.0165]	−0.0043 [−0.0090,0.0004]*	0.0092 [−0.0375,0.0559]
Mean MA Before	0.2188	0.2154	0.4621	0.0205	0.0086	0.0746
Patient’s Zip Code in Second Income Quartile (22% of sample)
Ma* After	−0.1222 [−0.1917,−0.0526]***	0.0635 [−0.0203,0.1473]	0.0595 [0.0231,0.0959]***	0.0059 [0.0022,0.0097]***	0.0087 [−0.0070,0.0245]	−0.0155 [−0.0457,0.0148]
Mean MA Before	0.2108	0.5354	0.1600	0.0039	0.0051	0.0848
Patient’s Zip Code in Third Income Quartile (29% of sample)
Ma* After	−0.0796 [−0.0912,−0.0679]***	0.0777 [0.0400,0.1154]***	0.0067 [−0.0146,0.0281]	−0.0026 [−0.0111,0.0059]	−0.0100 [−0.0141,−0.0060]***	0.0078 [−0.0195,0.0351]
Mean MA Before	0.1410	0.7130	0.0778	0.0053	0.0122	0.0507
Patient’s Zip Code in Fourth Income Quartile (33% of sample)
Ma* After	−0.0160 [−0.0214,−0.0107]***	0.0334 [0.0062,0.0606]**	0.0109 [−0.0020,0.0238]*	0.0007 [−0.0007,0.0021]	−0.0043 [−0.0075,−0.0010]**	−0.0247 [−0.0364,−0.0131]***
Mean MA Before	0.060	0.8799	0.0120	0.0016	0.0051	0.0417

95% asymptotic CI clustered by state:

^***Significant at .01,

^**Significant at .05,

^*Significant at .10

MA*During included but coefficient not reported. All specifications and means weighted using sample weights.

All specifications include state fixed effects and time fixed effects for 2004 to 2009, annually. Omitted state: Alabama.

Source: CPS March Supplement 2004–2009 authors’ calculations. See text for more details.