Table 2 Results for Anopheles epiroticus of the experimental hut trial in the Mekong delta, southern Vietnam
Outcomes measuresA | Control | PermaNet 2.0 unwashed | PermaNet 3.0 unwashed | PermaNet 2.0 20× washed | PermaNet 3.0 20× washed | CTN Washed just before exhaustion (5 × washed) |
|---|---|---|---|---|---|---|
ENTRY RATE | ||||||
Total females caught | 4114 | 2851 | 3289 | 3038 | 2671 | 3821 |
Females caught per night | 114.3a | 79.2a, b | 91.4a, b | 84.4a, b | 74.2b | 106.1a, b |
Deterrence % (TC - TT)/(TC)*100 | -- | 30.7 | 20.1 | 26.2 | 35.1 | 7.1 |
EXIT RATE | ||||||
Total Females in veranda | 1757 | 1105 | 1185 | 1419 | 921 | 2043 |
Exophily % | 42.7a | 38.8b | 36.0c | 46.7d | 34.5c | 53.5e |
95% CI | 41.2 - 44.2 | 37.0 - 40.6 | 34.4 - 37.7 | 44.9 - 48.5 | 32.7 - 36.3 | 51.9 - 55.1 |
BLOOD FEEDING RATE | ||||||
Total females blood fed | 999 | 189 | 150 | 236 | 178 | 334 |
blood fed (%) | 24.3a | 6.6b | 4.6c | 7.8b, d | 6.7b | 8.7d |
95% CI | 23.0 - 25.6 | 5.7 - 7.6 | 3.9 - 5.3 | 6.8 - 8.8 | 5.7 - 7.7 | 7.9 - 9.7 |
Blood fed inhibition % (%BFC-%BFT)/(%BFC)*100 | -- | 72.7 | 81.2 | 68.0 | 72.6 | 64.0 |
personal protection % (BFC-BFT)/(BFC)*100 | -- | 81.1 | 85.0 | 76.4 | 82.2 | 66.6 |
MORTALITY RATE | ||||||
Total females dead | 1394 | 2617 | 3145 | 2487 | 2437 | 2645 |
Overall mortality (%) | 34.1a | 92.2b | 96.4c | 82.3d | 91.6b | 69.7e |
95% CI | 32.7 - 35.6 | 91.1 - 93.2 | 95.7 - 97.0 | 80.9 - 83.6 | 90.5 - 92.6 | 68.2 - 71.1 |
Overall insecticidal effect (DT-DC)/(TC)*100 | -- | 29.7 | 42.6 | 26.6 | 25.4 | 30.4 |
Overall mortality among blood fed (%) | 10.1a | 89.9b | 94.7b | 93.6b | 92.0b | 81.2c |
95% CI | 8.3 - 12.1 | 84.7 - 93.8 | 98.8 - 97.7 | 89.6 - 96.4 | 87.0 - 95.6 | 76.6 - 85.3 |
Overall corrected mortality among blood fed (%) | -- | 88.8 | 94.1 | 92.8 | 91.2 | 79.1 |