From: Spatial distribution of Glossina sp. and Trypanosoma sp. in south-western Ethiopia
Risk factor | Category | IRR | 95Â % CI | p-value |
---|---|---|---|---|
Altitude | ≤1200 ma | 1 | - | - |
 | >1200 m, ≤1300 m | 0.71 | (0.67,0.74) | <0.001 |
 | >1300 m, ≤1400 m | 0.79 | (0.76, 0.83) | <0.001 |
 | >1400 m, ≤1500 m | 0.34 | (0.32,0.37) | <0.001 |
 | >1500 m | 0.70 | (0.63,0.78) | <0.001 |