Table 9.
The fecundity of mosquitoes after exposure to mosquito coils and DDT in experimental huts
| Treatment | Total mosquitoes that laid eggs/total blood fed mosquitoes | OR [95% CI] | Mean proportion | [95% CI] | z value | p value |
|---|---|---|---|---|---|---|
|
Control |
202/614 |
1.00 [0.00 – 2.00] |
0.33 |
[0.28 - 0.37] |
-7.36 |
NA |
|
DDT |
19/76 |
0.68 [-0.32 – 1.41] |
0.20 |
[0.13 - 0.30] |
-2.41 |
0.016 |
|
Transfluthrin coils |
1/6 |
0.41 [-0.36 – 3.02] |
0.15 |
[0.02 - 0.61] |
-0.94 |
0.347 |
| Metofluthrin coils | 11/34 | 0.96 [-0.57 – 5.98] | 0.24 | [0.13 - 0.40] | -1.13 | 0.258 |
Legend: Fecundity was measured by determining the proportion of mosquitoes that laid eggs out of those that successfully blood fed. Fecundity was compared between mosquitoes exposed to mosquito coils, DDT and no insecticide inside experimental huts in the semi field system for 16 nights.
CI – Confidence intervals; OR – Odds ratios of the proportion of mosquitoes.