Table 5.
The proportion of the mortality of mosquitoes 24 hours after collection from experimental huts
| Treatment | Total dead mosquitoes | Total mosquitoes recaptured |
Crude mortality |
OR [95% CI] |
Corrected mortality⌘ |
z value | p value | ||
|---|---|---|---|---|---|---|---|---|---|
| Mean proportion | [95% CI] | Mean proportion | [95% CI] | ||||||
|
Control |
193 |
1067 |
0.17 |
[0.13 - 0.22] |
1.00 [0.00 – 2.00] |
0.00 |
[0.00 - 0.00] |
-10.04 |
NA |
|
DDT |
836 |
1185 |
0.70 |
[0.65 - 0.74] |
9.68 [4.19 – 21.00] |
0.64 |
[0.60 - 0.67] |
22.49 |
<0.001 |
|
Metofluthrin coils |
763 |
1157 |
0.67 |
[0.63 - 0.72] |
8.77 [2.34 – 17.79] |
0.61 |
[0.57 - 0.64] |
21.96 |
<0.001 |
| Transfluthrin coils | 727 | 1067 | 0.72 | [0.68 - 0.76] | 10.85 [1.53 – 21.01] | 0.66 | [0.63 - 0.70] | 23.32 | <0.001 |
Legend: Experiments were conducted in experimental huts within a semi field system. Mortality of mosquitoes is compared between huts that had mosquito coils, DDT and no insecticide. Experiments were conducted for 16 nights. CI – Confidence intervals. ⌘ - Corrected using Abbott’s formula; OR – Odds ratios of the proportion of mosquitoes.