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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 3.

Risk ratio (RR) and 95% confident interval of prostate cancer 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 1.09 (1.03–1.14) 0.002
2.99 – 18.6 1.18 (1.12–1.24) <0.001
Adjusted1 1.08 – 2.06 1.00 (reference) < 0.001
2.07 – 2.98 1.23 (1.16–1.30) < 0.001
2.99 – 18.6 1.28 (1.21–1.35) < 0.001
1

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