Table 1: Distance of case residence compared to US Census control centroids to water source in meters, evaluated by odds ratio (OR), 95% confidence intervals (CI), and significance ( 𝑃 value).

Distance (m)OR95% CI 𝑃 value

500.10(0.01, 0.42)<0.01
1000.21(0.07, 0.42)<0.01
1500.35(0.18, 0.66)<0.01
2000.54(0.32, 0.89)0.01
2500.70(0.46, 1.05)0.07
3000.76(0.52, 1.11)0.14
3500.78(0.54, 1.12)0.16
4000.82(0.58, 1.16)0.24
4500.82(0.59, 1.14)0.22
5000.85(0.62, 1.17)0.31
5500.87(0.63, 1.19)0.35
6000.78(0.57, 1.07)0.11
6500.84(0.62, 1.15)0.26
7000.89(0.66, 1.21)0.45
7500.92(0.68, 1.25)0.60