Table 3. Interactions between county-level racial inequality and urban-rural classification on infant mortality rate (IMR) in US counties.
| Black IMR | White IMR | Black-white IMR ratio | |
| β (SE) | β (SE) | β (SE) | |
| Racial inequity | |||
| Median income | .81 (6.22) | .64 (2.42) | 1.24 (1.72) |
| College graduation | 8.06 (4.86) | -4.04 (1.83)a | 3.31 (1.35)a |
| Unemployment | .35 (1.20) | .08 (.43) | .11 (.33) |
| Homeownership | 4.94 (3.62) | 1.45 (1.41) | .12 (1.00) |
| Urbanization | |||
| Large central metro | --- | --- | --- |
| Large fringe metro | 1.83 (2.72) | -.62 (1.00) | 1.12 (.75) |
| Medium | -2.50 (2.86) | -.71 (1.04) | .40 (.79) |
| Small | 2.28 (3.09) | .94 (1.03) | .51 (.85) |
| Micropolitan | 9.58 (11.79) | .41 (3.75) | 1.70 (3.25) |
| Racial inequity in median income × Urbanization | |||
| Large central metro | --- | --- | --- |
| Large fringe metro | -4.41 (7.93) | 2.05 (3.08) | -3.45 (2.23) |
| Medium | 3.64 (7.83) | .68 (2.68) | -.76 (2.16) |
| Small | 5.71 (8.97) | 1.63 (2.94) | -1.70 (2.48) |
| Micropolitan | -16.70 (23.16) | -8.68 (7.78) | -2.02 (6.39) |
| Racial inequity in college graduation × Urbanization | |||
| Large central metro | --- | --- | --- |
| Large fringe metro | -2.83 (5.54) | 2.39 (2.09) | -1.44 (1.53) |
| Medium | -8.27 (5.65) | 2.66 (1.96) | -1.63 (1.56) |
| Small | -10.54 (6.37) | 1.36 (2.19) | -2.24 (1.76) |
| Micropolitan | -13.80 (15.16) | 13.43 (5.90)a | -6.54 (4.19) |
| Racial inequity in unemployment × Urbanization | |||
| Large central metro | --- | --- | --- |
| Large fringe metro | -.12 (1.48) | -.09 (.52) | -.01 (.41) |
| Medium | .99 (1.43) | -.28 (.48) | .04 (.39) |
| Small | -2.33 (1.48) | -.40 (.47) | -.26 (.41) |
| Micropolitan | .40 (4.84) | .62 (.80) | .07 (1.34) |
| Racial inequity in homeownership × Urbanization | |||
| Large central metro | --- | --- | --- |
| Large fringe metro | 1.37 (4.86) | -1.88 (1.87) | 1.46 (1.36) |
| Medium | 6.57 (4.65) | -.06 (1.72) | 1.33 (1.28) |
| Small | 16.22 (5.01) a | -1.59 (1.73) | 4.45 (1.38) a |
| Micropolitan | 3.11 (21.13) | -6.23 (5.63) | 3.67 (5.83) |
| Population, 100,000 | -.03 (.02) | -.01 (.01) | -.01 (.01) |
| % non-Hispanic Black | 2.41 (1.82) | 2.14 (.64) a | -.34 (.51) |
| Dissimilarity Index | -1.21 (1.89) | -1.05 (.69) | .26 (.52) |
| Median income, $10,000 | -.74 (.21) a | -.35 (.07) a | .04 (.06) |
| % college graduate | -.04 (.06) | -.09 (.02) a | .03 (.02) |
| % unemployed | .04 (.10) | -.11 (.04) a | .06 (.03) a |
| % homeowner | 12.24 (2.67) a | -.47 (.91) | 2.39 (.74) a |
| Constant | 2.22 (3.45) | 10.73 (1.25) a | -2.59 (.95) a |
| Number of observations | 264 | 308 | 263 |
| R-squared | .56 | .58 | .40 |
| Adjusted R-squared | .50 | .54 | .32 |
| F statistic (P) | 9.43 (P<.001) | 12.49 (P<.001) | 5.02 (P<.001) |
a. P<.05.