Table 2.
Comparison of Olyset and alphacypermethrin treated nets against Anopheles gambiae in experimental huts.
| Untreated net | New alphacypermethrin | 1.5 year alphacypermethrin | New Olyset | 7 year Olyset | |
| Total females caught | 112 | 93 | 138 | 177 | 165 |
| Females caught/night | 1.9a | 1.5a | 2.3a | 2.9a | 2.7a |
| % Inside net | 8.9a | 1.1b | 0.7b | 0b | 0b |
| % In veranda and exit traps (95% C.I.) | 91.1a (85.8 – 96.4) | 94.6ab (90.0 – 99.2) | 97.1b (94.3 – 99.9) | 98.3b (96.4 – 100.2) | 97.0b (94.5 – 99.6) |
| % Insecticide induced exophily | - | 39.3 | 67.5 | 81.0 | 66.1 |
| % Blood fed (95% C.I.) | 26.8a (18.6 – 35.0) | 8.6b (2.9 – 14.3) | 18.8ab (12.3 – 25.4) | 15.8b (10.4 – 21.2) | 49.5c (40.9 – 56.1) |
| % Blood feeding inhibition | - | 67.9 | 29.9 | 40.9 | 0 |
| % Mortality (95% C.I.) | 3.6a (0.13 – 7.0) | 72.0bc (62.9 – 81.2) | 69.6c (61.9 – 77.2) | 62.7b(55.8 – 69.8) | 40.0d (32.5 – 47.5) |
| % Mortality (corrected for control) | - | 71.0 | 68.4 | 61.3 | 37.9 |
Numbers in the same row sharing a letter superscript do not differ significantly (P > 0.05)