Table 1 Summary of 24-hour mortality of Anopheles funestus mosquitoes in tests of adults collected at different distances from aquatic habitats and exposed to deltamethrin or permethrin with or without the synergist, piperonyl butoxide (PBO)
Insecticide | Insecticide dose | Distance (m) | Mean mortality (95% CI) | OR (95% CI) | p-value |
|---|---|---|---|---|---|
|  |  | 50–100 | 11% (5.96–20.23) | Ref. | Ref. |
|  | 1× | 150–200 | 14% (7.78–23.15) | 1.26 (0.49–3.22) | 0.633 |
|  |  | > 200 | 41% (31.03–52.29) | 5.54 (2.43–12.63) | < 0.001* |
|  |  | 50–100 | 46% (35.67–57.18) | Ref. | Ref. |
Deltamethrin | 5× | 150–200 | 45% (34.50–55.97) | 0.95 (0.51–1.77) | 0.873 |
|  |  | > 200 | 54% (42.82–64.33) | 1.35 (0.73–2.51) | 0.343 |
|  |  | 50–100 | 46% (35.67–57.18) | Ref. | Ref. |
|  | 10× | 150–200 | 53% (41.61–63.16) | 1.28 (0.69–2.39) | 0.429 |
|  |  | > 200 | 60% (48.95–70.11) | 1.74 (0.93–3.26) | 0.082 |
|  |  | 50–100 | 28% (18.84–38.26) | Ref. | Ref. |
|  | 1× | 150–200 | 35% (25.38–46.02) | 1.42 (0.72–2.78) | 0.307 |
|  |  | > 200 | 44% (33.34–54.75) | 2.05 (1.06–3.97) | 0.033* |
|  |  | 50–100 | 36% (25.68–48.10) | Ref. | Ref. |
Permethrin | 5× | 150–200 | 50% (38.31–61.70) | 1.76 (0.93–3.31) | 0.080 |
|  |  | > 200 | 58% (45.60–68.70) | 2.38 (1.26–4.49) | 0.008* |
|  |  | 50–100 | 51% (40.41–61.97) | Ref. | Ref |
|  | 10× | 150–200 | 68% (56.54–76.83) | 1.98 (1.04–3.75) | 0.037* |
|  |  | > 200 | 79% (68.44–86.36) | 3.53 (1.76–7.04) | < 0.001* |
|  |  | 50–100 | 82% (69.85–89.55) | Ref. | Ref. |
Permethrin + PBO | PBO | 150–200 | 93% (83.54–97.48) | 3.14 (0.94–10.51) | 0.063 |
|  |  | > 200 | 92% (81.49–96.49) | 2.47 (0.80–7.61) | 0.115 |
|  |  | 50–100 | 85% (73.61–92.01) | Ref. | Ref. |
Deltamethrin + PBO | PBO | 150–200 | 98% (89.10–99.77) | 10.41 (1.28–85.00) | 0.029* |
|  |  | > 200 | 95% (85.61–98.38) | 3.35 (0.86–13.07) | 0.081 |