Table 2.
Mean Differences in age-adjusted CHD mortality associated with race and covariates in OLSa, GEEa and GWRa Models (N = 4211).
| OLS Model 1 | GWR Model 2 | GWR Model 3 | GWR Model 4 | GWR Model 5 | OLS Model 6 | GEE Model 7 | |
|---|---|---|---|---|---|---|---|
| Race | 27.84††† (1.64) | 17.71*** (4.0, 34.0) | −10.75*** (−37.66, 18.02) | −19.25*** (−52.39, 12.63) | −13.52 (−41.34, 15.68) | −28.24 ††† (4.23) | −21.93 ††† (4.12) |
| Povertyb | 17.53*** (5.71, 31.63) | 18.16*** (7.29, 29.64) | 22.81*** (12.05, 35.61) | 26.03 ††† (1.66) | 20.59 ††† (1.70) | ||
| Segregationb | −5.64*** (−16.03, 4.78) | −0.38*** (−14.93, 14.68) | 0.17 (1.52) | −1.91 (1.41) | |||
| Race*poverty | −8.75 (−24.53, 6.64) | −7.23 †† (2.23) | −7.50ccc (1.87) | ||||
| Race*segregation | −3.22* (−29.78, 19.90) | −16.12 ††† (2.61) | −9.9 ††† (2.76) | ||||
| R2 (%) | 6.4 | 27.9 (19.9, 38.1) | 35.6 (25.4, 46.3) | 32.2 (23.6, 41.5) | 31.8 (22.8, 39.9) | 14.9 | |
| AIC | 44491.15 | 41860.74 | 41582.81 | 41952.97 | 42180.61 | 44027.97 | |
| Moran’s I test | N/A | N/A | N/A | N/A | 0.025††† | 0.30††† | |
| ANOVA F test | 5.03† | 4.49† | 4.73††† | 5.31††† |
P < 0.05;
P < 0.001;
P < 0.0001 are significance levels of the OLS and GEE models indicate whether the coefficients are significantly different from zero.
P < 0.05;
P < 0.001;
P < 0.0001 are significance levels of GWR models indicate whether there is significant spatial variation in the relationships between CHD mortality and race, poverty, segregation, and interaction terms, as determined by the Leung’s F 3 test (Leung et al., 2000a).
For the OSL and GEE models estimates correspond to the coefficient and the SE in parentheses. For GWR models estimates correspond to the median coefficients and the 25th and 75th percentiles in parentheses.
Poverty and segregation were Z-scored and mean centered.