Table 4 –
All counties (N=804) | Excluding large metropolitan counties (N=648) | |||
---|---|---|---|---|
Well count coeff. (P value) [95% CI] |
Well density coeff. (P value) [95% CI] |
Well count coeff. (P value) [95% CI] |
Well density coeff. (P value) [95% CI] |
|
Genitourinary, females 20–64y.o. | ||||
- kidney infections | 0.002* (0.027) [0.0003, 0.004] |
6.19* (0.04) [0.40, 12.0] |
0.003* (0.010) [0.0007, 0.005] |
8.44** (0.009) [2.20, 14.68] |
- calculus of ureter | 0.003** (0.003) [0.001, 0.005] |
7.91** (0.004) [2.63, 13.20] |
0.003** (0.009) [0.0009, 0.006] |
8.21* (0.013) [1.82, 14.61] |
- urinary tract infection | 0.003** (0.004) [0.001, 0.005] |
7.16** (0.003) [2.52, 11.80] |
0.004** (0.003) [0.001, 0.006] |
9.70** (0.001) [4.22, 15.19] |
Notes: We calculated hospitalization rates by dividing the number of hospitalizations in a county year by the estimate of the population count in the demographic group (females, 20–64y.o.) in the county year. We obtained hospitalization data from Pennsylvania Health Care Cost Containment Council (PHC4) and population count estimates from the Surveillance, Epidemiology, and End Results (SEER) Program. The well data are from Carnegie Museum of Natural History.
P values from 2-tailed tests are reported in parentheses, 95% confidence intervals (CI) are reported in square brackets.
Statistically significant at <0.001 level,
at <0.01 level,
at <0.05 level