From: Spatial prediction of Plasmodium falciparum prevalence in Somalia
 | Bivariate model | Multivariate model | ||
---|---|---|---|---|
Zone | Odds ratio (95% Confidence Interval) | P-value | Odds ratio (95% Confidence Interval) | P-value |
North | Â | Â | Â | Â |
Average annual Enhanced Vegetation Index | 1.03 (1.06–1.11) | <0.001 | 1.97 (0.24–1.63) | 0.223 |
Average annual precipitation | 0.98 (0.97–0.99) | 0.002 | 1.04 (1.02–1.08) | 0.002 |
Average annual minimum temperature | Â | Â | Â | Â |
<median of 20.4°C | Ref | - | Ref | - |
>median of 20.4°C | 2.02 (1.59–2.58) | <0.001 | 1.35 (1.01–1.80) | 0.045 |
Average annual maximum temperature | Â | Â | Â | Â |
<median of 32.4°C | Ref | - | Ref | - |
>median of 32.4°C | 2.63 (2.04–3.39) | <0.001 | - | - |
Distance to water features (km) | 0.61 (0.49–.76) | <0.001 | 0.68 (0.46–0.99) | 0.049 |
Survey month | Â | Â | Â | Â |
   February | Ref | - | Ref | - |
   July | 2.83 (2.24–3.59) | <0.001 | 3.24 (2.37–4.44) | <0.001 |
   September | 0.08 (0.04–0.16) | <0.001 | 0.10 (0.04–0.19) | <0.001 |
   November | 1.66 (1.29–2.14) | <0.001 | 1.58 (1.13–2.22) | 0.008 |
South | Â | Â | Â | Â |
Average annual Enhanced Vegetation Index | 1.09 (1.05–1.19) | <0.001 | 1.60 (0.54–4.70) | 0.215 |
Average annual precipitation | 1.03 (1.02–1.04) | <0.001 | 1.02 (1.03–1.04) | <0.001 |
Average annual minimum temperature | Â | Â | Â | Â |
<median of 22.1°C | Ref | - | Ref |  |
>median of 22.1°C | 0.43 (0.39–0.48) | <0.001 | 0.61 (0.55–0.68) | <0.001 |
Average annual maximum temperature | Â | Â | Â | Â |
<median of 33.6°C | Ref | - | - | - |
>median of 33.6°C | 2.15 (1.96–2.36) | <0.001 | - | - |
Distance to water features (km) | 1.04 (1.01–1.07) | 0.005 | 0.84 (0.81–0.87) | <0.001 |
Survey month | Â | Â | Â | Â |
   February | Ref | - | - | - |
   March | 3.57 (3.25–3.92) | <0.001 | 7.62 (6.30–9.22) | <0.001 |
   May | 1.11 (0.95–1.30) | 0.194 | 6.03 (4.68,7.79) | <0.001 |
   June | 0.73 (0.65–0.82) | <0.001 | 1.71 (1.43–2.04) | 0.001 |
   November | 0.18 (0.14–0.24) | <0.001 | 0.33 (0.25–0.45) | <0.001 |
   December | 1.10 (0.99–1.22) | 0.056 | 1.62 (1.41–1.87) | <0.001 |