Table 6 Description of the risk classes in 1996 and 2007.
Class | Risk | Built-up area in 300-m radius buffer | An. arabiensis aggressiveness evaluated from the model (number of bites/person/night) | Area of the risk class in 1996 (Ha) | Area of the risk class in 2007 (Ha) | Difference in risk class areas between 1996 and 2007 | % difference in risk class areas between 1996 and 2007 | % of the risk class area in 1996 | % of the risk class area in 2007 |
|---|---|---|---|---|---|---|---|---|---|
1 | High | < 20 ha | [2.82 - 0.28[ | 1457 | 1195 | -262 | -18% | 32% | 20% |
2 | Medium | [20-26[ ha | [0.28 - 0.03[ | 1735 | 2267 | +532 | +31% | 39% | 39% |
3 | Low | > = 26 ha | < = 0.03 | 1319 | 2385 | +1066 | +81% | 29% | 41% |
Total | Â | Â | Â | 4511 | 5847 | +1336 | +30% | 100% | 100% |