Table 6.
Relative effects of adding different types of LLINs into huts with different IRS treatments
| |
Olyset® nets added |
PermaNet 2.0® nets added |
Icon Life® nets added |
||||
|---|---|---|---|---|---|---|---|
| RR (95% CI) | P value | RR (95% CI) | P value | RR (95% CI) | P value | ||
| Unsprayed huts |
Dry season |
1.315 (1.172 – 1.590) |
< 0.001 |
2.300 (1.981 – 2.672) |
< 0.001 |
2.177 (1.914 – 2.477) |
< 0.001 |
| |
Wet season |
1.328 (1.119 – 1.470) |
< 0.001 |
1.654 (1.575 – 1.736) |
< 0.001 |
1.545 (1.415 – 1.688 |
< 0.001 |
| Huts sprayed with DDT |
Dry season |
0.997 (0.769 – 1.129) |
= 0.232 |
1.184 (0.998 – 1.404) |
= 0.052 |
1.221 (0.823 – 1.532) |
= 0.079 |
| |
Wet season |
1.172 (0.972 – 1.323) |
= 0.093 |
1.181 (1.056 – 1.320) |
= 0.003 |
1.227 (0.823 – 1.621) |
= 0.081 |
| Huts sprayed with Lambda cyhalothrin |
Dry season |
0.841 (0.739–0.956) |
= 0.008 |
1.461 (1.285 – 1.662) |
< 0.001 |
1.239 (1.094 – 1.405) |
< 0.001 |
| |
Wet season |
1.157 (0.921 – 1.454) |
= 0.210 |
1.698 (1.354 – 2.129) |
< 0.001 |
1.433 (1.190 – 1.725) |
< 0.001 |
| Huts sprayed with Pirimiphos methyl |
Dry season |
0.994 (0.866–1.141) |
= 0.930 |
1.773 (1.544 – 2.036) |
< 0.001 |
1.387 (1.224 – 1.571) |
< 0.001 |
| Wet season | 1.321 (1.126 – 1.549) | = 0.001 | 1.262 (1.075 – 1.481) | = 0.004 | 1.386 (1.182 – 1.626) | < 0.001 | |
The table shows relative rates (RR) and associated 95% confidence intervals of increased mortality of Anopheles arabiensis in huts with IRS plus LLINs, compared to huts with IRS supplemented only with untreated nets.