Table 5.
OLS coefficient estimates for three models based on covariates that were selected by the spatial scale (SS) forward stepwise model of BMI z-score: (1) when constraining all selected area-level covariates to enter at the CBG level; (2) when constraining all selected area-level covariates to enter at the CT level; and (3) when allowing all selected area-level covariates to enter at the model-selected spatial scale. The horizontal dashed line separates the individual-level variables and the area-level variables.
| Explanatory Variable | CBG | CT | SS |
|---|---|---|---|
| Visit Age | 0.080 | 0.080 | 0.080 |
| Black | 0.045 | 0.044 | 0.043 |
| Distance to Medical Center | 0.017 | 0.014 | 0.013 |
| Population Density | −0.033 | −0.033 | −0.033 t |
| % Hispanic White | 0.035 | 0.035 | 0.034 t |
| % Hispanic Black | 0.020 | 0.021 | 0.022 t |
| Median Household Income | −0.043 | −0.063 | −0.058 t |
| % Renter | −0.028 | −0.035 | −0.035 t |
| % Vacant | 0.017 | 0.015 | 0.016 t |
| Personal Crime Index | −0.020 | −0.017 | −0.021 b |
| Park Density | 0.007 | 0.011 | 0.011 t |
| Exercise Equipment | −0.047 | −0.032 | −0.040 b |
Notes: Values marked with b denote area-level covariates selected at the CBG level, and values marked with t denote area-level covariates selected at the CT level.