Predictor Variables | Difference in provider counts/Km2 (95% CI) P-value For tracts in the second tertile of population density (248—1,479 people/Km2) | Difference in provider counts/Km2 (95% CI) P-value For tracts in the third tertile of population density (> 1,479people/Km2) |
---|---|---|
Quartiles of Change in Inflation-Adjusted Median Household Income 1990–2010 | ||
1st Quartile | Ref | Ref |
2nd Quartile | 0.15 (0.04, 0.26) p = 0.006 | 0.24 (0.03, 0.44) p = 0.024 |
3rd Quartile | 0.35 (0.21, 0.49) p < 0.001 | 0.50 (0.28, 0.73) p < 0.001 |
4th Quartile | 0.53 (0.37, 0.7) p < 0.001 | 1.53 (1.23, 1.83) p < 0.001 |
Quartiles of Change in Inflation-Adjusted Median Household Income 1990–2010 * Year | ||
1st Quartile * Year | Ref | Ref |
2st Quartile * Year | 0.01 (0.004, 0.02) p = 0.001 | 0.004 (-0.01, 0.02) p = 0.583 |
3st Quartile * Year | 0.02 (0.01, 0.03) p = 0.001 | 0.03 (0.01, 0.05) p = 0.001 |
4st Quartile * Year | 0.04 (0.03, 0.06) p < 0.001 | 0.09 (0.07, 0.11) p < 0.001 |