Table 2.
The odds ratio [95% confidence interval] of monthly mortality rates of An. marajoara after 24 h post-exposure to alpha-cypermethrin, etofenprox WP, and lambda-cyhalothrin CS on four different surfaces: plastered cement wall (CP1), unplastered cement wall (CP2), painted wooden wall (WP1), and the unpainted wooden wall (WP2)
| Insecticide | Substrate | Days post IRS | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30 | 60 | 90 | 120 | 150 | 180 | 210 | 240a | ||
| Alpha-cypermethrin SC | WP1 | 1.00 [0.78, 1.28] | 1.00 [0.81, 1.24] | 0.99 [0.73, 1.34] | 0.77 [0.57, 1.05] | 0.81 [0.59, 1.10] | 0.49 [0.34, 0.70] | 0.24 [0.15, 0.38] | – | – |
| WP2 | 0.83 [0.64, 1.08] | 0.91 [0.73, 1.14] | 0.45 [0.31, 0.66] | 0.42 [0.28, 0.61] | – | – | – | – | – | |
| CP1 | 0.98 [0.77, 1.26] | 0.7 [0.57, 1.04] | 0.21 [0.13, 0.35] | – | – | – | – | – | – | |
| CP2 | 0.97 [0.73, 1.28] | 0.51 [0.36, 0.71] | 0.50 [0.36, 0.70] | – | – | – | – | – | – | |
| Etofenprox WP | WP1 | 1.00 [0.79, 1.27] | 1.00 [0.73, 1.37] | 0.85 [0.62, 1.15] | 0.81 [0.59, 1.12] | 0.57 [0.40, 0.82] | 0.29 [0.19, 0.45] | – | – | – |
| WP2 | 1.00 [0.80, 1.25] | 0.96 [0.72, 1.28] | 0.98 [0.73, 1.31] | 0.97 [0.72, 1.30] | 0.86 [0.64, 1.16] | 0.68 [0.49, 0.94] | 0.34 [0.23, 0.50] | – | – | |
| CP1 | 1.00 [0.79, 1.26] | 0.92 [0.70, 1.22] | 0.86 [0.64, 1.17] | 0.40 [0.27, 0.59] | 0.52 [0.36, 0.73] | – | – | – | – | |
| CP2 | 0.97 [0.77, 1.23] | 0.66 [0.48, 0.91] | 0.53 [0.37, 0.77] | – | – | – | – | – | – | |
| Lambda-cyhalothrin WP | WP1 | 0.99 [0.79, 1.25] | 0.98 [0.72, 1.32] | 0.65 [0.46, 0.91] | 0.42 [0.29, 0.62] | – | – | – | – | – |
| WP2 | 0.96 [0.77, 1.19] | 0.96 [0.72, 1.28] | 0.72 [0.53, 0.98] | 0.62 [0.44, 0.87] | – | – | – | – | – | |
| CP1 | 0.88 [0.70, 1.11] | 0.78 [0.57, 1.05] | 0.02 [0.01, 0.09] | – | – | – | – | – | – | |
| CP2 | 0.98 [0.77, 1.24] | 0.73 [0.53, 1.00] | 0.58 [0.39, 0.86] | – | – | – | – | – | – | |
| Deltamethrin WG | WP1 | 1.00 [0.74, 1.36] | 1.00 [0.77, 1.30] | 0.97 [0.75, 1.26] | 0.97 [0.74, 1.27] | 0.95 [0.75, 1.21] | 0.94 [0.74, 1.19] | 0.84 [0.64, 1.11] | 0.82 [0.61, 1.10] | 0.83 [0.65, 1.06] |
| WP2 | 1.00 [0.74, 1.35] | 0.97 [0.76, 1.26] | 0.59 [0.45, 0.78] | 0.94 [0.70, 1.25] | 0.94 [0.73, 1.20] | 0.93 [0.73, 1.19] | 0.92 [0.70, 1.20] | 0.97 [0.75, 1.26] | 0.99 [0.79, 1.25] | |
| CP1 | 1.00 [0.74, 1.35] | 1.00 [0.77, 1.30] | 0.90 [0.70, 1.17] | 0.87 [0.66, 1.15] | 0.72 [0.56, 0.94] | 0.68 [0.52, 0.88] | – | – | – | |
| CP2 | 1.00 [0.75, 1.33] | 0.98 [0.77, 1.26] | 0.84 [0.65, 1.09] | 0.72 [0.53, 0.98] | 0.66 [0.50, 0.88] | – | – | – | – | |
| Bendiocarb WP | WP1 | 1.00 [0.78, 1.27] | 1.00 [0.78, 1.28] | 1.00 [0.81, 1.24] | 1.00 [0.76, 1.32] | 0.53 [0.40, 0.69] | 0.61 [0.46, 0.80] | – | – | – |
| WP2 | 1.00 [0.77, 1.29] | 1.00 [0.76, 1.31] | 1.00 [0.79, 1.27] | 0.99 [0.76, 1.29] | 0.47 [0.36, 0.63] | 0.66 [0.51, 0.87] | – | – | – | |
| CP1 | 1.00 [0.77, 1.31] | 0.11 [0.06, 0.19] | 0.02 [0.01, 0.07] | – | – | – | – | – | – | |
| CP2 | 1.00 [0.76, 1.31] | 0.05 [0.02, 0.11] | 0.05 [0.02, 0.11] | – | – | – | – | – | – | |
| Pirimiphos-Methyl CS | WP1 | 1.00 [0.78, 1.28] | 1.00 [0.76, 1.32] | 1.00 [0.80, 1.25] | 0.98 [0.78, 1.24] | 1.00 [0.79, 1.26] | 1.00 [0.78, 1.28] | 0.99 [0.78, 1.26] | 0.97 [0.75, 1.26] | 0.78 [0.62, 0.98] |
| WP2 | 1.00 [0.78, 1.28] | 1.00 [0.76, 1.32] | 0.94 [0.75, 1.17] | 0.79 [0.62, 1.02] | 0.84 [0.65, 1.08] | 0.87 [0.68, 1.12] | 0.74 [0.57, 0.96] | 0.65 [0.49, 0.86] | – | |
| CP1 | 1.00 [0.78, 1.27] | 0.97 [0.76, 1.24] | 0.99 [0.79, 1.24] | 0.91 [0.72, 1.16] | 0.70 [0.51, 0.95] | 0.95 [0.74, 1.22] | 0.64 [0.49, 0.84] | 0.99 [0.77, 1.28] | 0.90 [0.70, 1.16] | |
| CP2 | 1.00 [0.78, 1.29] | 0.97 [0.75, 1.25] | 1.00 [0.80, 1.25] | 0.98 [0.77, 1.24] | 1.00 [0.78, 1.28] | 0.98 [0.77, 1.24] | 0.97 [0.77, 1.23] | 0.92 [0.72, 1.17] | 0.98 [0.76, 1.25] | |
Italic entries indicate a statistical significance at 5% in the group comparison against the preceding month
aThe experiments were maintained until a mortality rate of less than 80% was observed for two consecutive months