Table 4.

Heterogeneity in the Relationship between Community Health Centers and Mortality Rates

	(1)	(2)	(3)	(4)	(5)	(6)
Panel A. Heterogeneous relationships by 1960 characteristics
Mean at t* = −1	2,915	3,403	3,049	3,252	3,736	3,130
Years −6 to −2	−2.0 [12.7]	1.6 [9.5]	−13.2 [20.8]	2.5 [8.5]	43.3 [26.9]	−5.7 [8.7]
Years 0 to 4	−23.9 [11.4]	−56.9 [12.6]	−44.5 [20.6]	−41.7 [10.9]	−21.2 [30.2]	−43.5 [9.8]
Years 5 to 9	−26.2 [16.2]	−113.5 [19.1]	−56.1 [27.5]	−79.4 [17.3]	−57.0 [39.8]	−68.7 [15.0]
Years 10 to 14	−14.4 [23.5]	−113.3 [24.1]	−37.4 [35.1]	−75.9 [22.7]	−33.5 [42.4]	−60.7 [19.4]
R2	0.80		0.80		0.80
Characteristic defining stratification	1960 AMR		1960 MDs per capita		Race
	Below median	Above median	Below median	Above median	Nonwhite	White
Mean characteristic in group	2,915	3,403	0.4	1.3	100	100
	(1)	(2)	(3)	(4)
Panel B. Dropping one census region at a time
Mean at t* = −1	3,180	3,189	3,199	3,278
Years −6 to −2	10.2 [8.9]	−4.3 [8.9]	−12.9 [9.6]	−1.3 [9.2]
Years 0 to 4	−44.3 [9.7]	−40.0 [11.9]	−35.7 [11.5]	−41.0 [10.3]
Years 5 to 9	−78.5 [16.6]	−61.8 [18.3]	−56.2 [16.2]	−80.7 [15.6]
Years 10 to 14	−75.1 [21.0]	−50.2 [24.1]	−41.3 [21.1]	−75.4 [20.0]
R2	0.75	0.81	0.85	0.81
Region dropped	NE	MW	S	W

Notes: The dependent variable is the AMR. This table reports model 2 estimates of the effects of ${\tilde{\pi }}_y^k$ and ${\tilde{\tau }}_y^k$ obtained by replacing equation (1)’s event-study dummies with ${{\displaystyle \sum }}_k({{\displaystyle \sum }}_{g=-2}^{-1}{\tilde{\pi }}_g^k{D}_j^k{D}_j^g+{{\displaystyle \sum }}_{y=0}^3{\tilde{\tau }}_g^k{D}_j^k{D}_j^g)$, where $D_j^k$ is equal to 1 if the county received a CHC between 1965 and 1974 and belongs to group k. k is defined as the group of treated counties with the indicated characteristic. Columns 1–4 are from separate regressions, each dropping one region from the analysis at a time as indicated in the column footer, and are for 2,823, 1,996, 1,661, and 2,643 counties, respectively.