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Table 2 Effects of proximity to a dam and altitude on Plasmodium falciparium malaria southwest Ethiopia, September 2003 to August 2011

From: Dynamics of Plasmodium falciparium and Plasmodium vivaxin a micro-ecological setting, Southwest Ethiopia: effects of altitude and proximity to a dam

Variables Categories IRR Std. Err. P Value 95% C.I.
Lower Upper
Buffer zones relative to GGHD < 1 km 1     
1-2 km 3.82 0.07 < 0.001 3.68 3.96
2-3 km 5.10 0.12 < 0.001 4.88 5.34
3-4 km 3.73 0.10 < 0.001 3.53 3.93
4-5 km 2.97 0.13 < 0.001 2.72 3.24
>5 km 1.04 0.15 0.81 0.78 1.37
Altitude in meters ≤ 1700 1     
1701-1800 0.03 0.01 < 0.001 0.02 0.04
1801-1900 0.93 0.17 0.71 0.65 1.33
1901-2000 1.61 0. 30 0.01 1.12 2.31
2001-2100 2.51 0.47 < 0.001 1.74 3.63
2101-2230 2.64 0. 50 < 0.001 1.82 3.82
Age (year) < 5 1     
5-9 1.05 0.04 0.19 0.98 1.12
  10-14 1.10 0.04 < 0.01 1.03 1.17
  15 + 1.04 0.03 0.14 0.99 1.10
Sex Male 1     
Female 0.96 0.01 0.01 0.93 0.99