Table 3 WHO bioassays with permethrin 0.75% and synergist, piperonyl butoxide (PBO) and Aedes aegypti from Jeddah, KSA (OR odds ratio, α = 0.05, * = significance)
Date | Status | Permethrin 0.75% | PBO 4% only | Insecticide + PBO 4% | Solvent control |
|---|---|---|---|---|---|
5-Nov-20 | Dead | 8 | 3 | 13 | 0 |
5-Nov-20 | Alive | 17 | 22 | 12 | 75 |
5-Nov-20 | Dead | 9 | 5 | 14 | 0 |
5-Nov-20 | Alive | 16 | 20 | 11 | 75 |
26-Oct-20 | Dead | 20 | 2 | 23 | 0 |
26-Oct-20 | Alive | 5 | 23 | 2 | 75 |
Total | Dead | 37 | 10 | 50 | 0 |
| Â | Alive | 38 | 65 | 25 | 225 |
| Â | % mortality | 49.3 | 13.3 | 66.7 | 0.0 |
|  | OR | Lower c.i | Upper c.i | α = 0.05 |
|---|---|---|---|---|
Permethrin + PBO/permethrin | 0.49 | 0.25 | 0.94 |  |
Permethrin + PBO/PBO | 0.08 | 0.03 | 0.17 |  |
Permethrin/PBO | 0.16 | 0.07 | 0.35 | Â |
Permethrin/permethrin + PBO | 2.05 | 1.06 | 3.97 | * |
PBO/permethrin + PBO | 13.00 | 5.72 | 29.54 | * |
PBO/permethrin | 6.33 | 2.83 | 14.16 | * |