Table 1 Influence of time of experiment on mortality at 24 h
Experiment period | Resistant profile | Insecticides and synergist | Time of assay | Total | Dead | % Mortality at 24Â h (95% CI) | ORa (95% CI) | P-value |
|---|---|---|---|---|---|---|---|---|
First | Metabolic resistant (Anopheles arabiensis and Culex quinquefasciatus) | DM | Day | 300 | 141 | 47.0 (36.1–57.9) | 1.00 |  |
Evening | 300 | 103 | 34.3 (23.5–45.1) | 0.14 (0.06–0.30) |  < 0.0001 | |||
DM + PBO | Day | 300 | 131 | 43.7 (34.2–53.2) | 1.00 |  | ||
Evening | 300 | 90 | 30.0 (20.9–39.1) | 0.29 (0.18–0.49) |  < 0.0001 | |||
Fully susceptible (Aedes aegypti) | DM | Day | 120 | 120 | 100 | 1.00 | Â | |
Evening | 120 | 120 | 100 | 1.00 | – | |||
DM + PBO | Day | 120 | 94 | 78.3 (70.5–86.2) | 1.00 |  | ||
Evening | 120 | 86 | 71.7 (61.9–81.4) | 0.70 (0.39–1.26) | 0.234 | |||
Second | Metabolic resistant (Anopheles arabiensis, An. funestus and Cx. quinquefasciatus) | DM | Afternoon | 360 | 249 | 69.2 (59.3–79.0) | 1.00 |  |
Night | 360 | 234 | 65.0 (54.9–75.1) | 0.40 (0.19–0.82) | 0.013 | |||
DM + PBO | Afternoon | 360 | 276 | 76.7 (68.3–85.0) | 1.00 |  | ||
Night | 360 | 273 | 75.8 (67.4–84.3) | 0.89 (0.51–1.55) | 0.669 | |||
Knock down resistant (An. gambiae) | DM | Afternoon | 120 | 114 | 95.0 (90.1–99.9) | 1.00 |  | |
Night | 120 | 119 | 99.2 (97.5–100) | 6.26 (0.74–52.84) | 0.092 | |||
DM + PBO | Afternoon | 120 | 120 | 100 | 1.00 |  | ||
Night | 120 | 120 | 100 | 1.00 | – | |||
Fully Susceptible (An. gambiae and Aedes aegypti) | DM | Afternoon | 240 | 240 | 100 | 1.00 | Â | |
Night | 240 | 240 | 100 | 1.00 | – | |||
DM + PBO | Afternoon | 240 | 240 | 100 | 1.00 |  | ||
Night | 240 | 240 | 100 | 1.00 | – |