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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Environ Res. 2017 Sep 18;159:338–343. doi: 10.1016/j.envres.2017.08.026

Table 4.

Risk ratio (RR) and 95% confident interval of aggressive prostate cancer by county arsenic group using spatial Poisson regression models

Model Average Arsenic
level (ppb)		 RR (95% CI) p-value Trend
Crude 1.08 – 2.06 1.00 (reference) <0.001
2.07 – 2.98 1.11 (1.04–1.19) 0.002
2.99 – 18.6 1.32 (1.23–1.47) <0.001
Adjusted1 1.18 – 2.06 1.00 (reference) < 0.001
2.07 – 2.98 1.20 (1.13–1.29) < 0.001
2.99 – 18.6 1.36 (1.28–1.45) < 0.001
1

Adjusted for rates of poverty, smoking, drinking, obesity, and pesticide use density