Table 1 Insecticidal efficacy of different arms on entry, exit, mortality and blood-feeding of An. culicifacies collected in the experimental hut trials
Unwashed Veeralin LN | Veeralin LN washed 20 times | Unwashed MAGNet LN | MAGNet LN washed 20 times | Untreated polyester net | Veeralin LN washed 25 times | |
|---|---|---|---|---|---|---|
Number of collections | 72 | 72 | 72 | 72 | 72 | 72 |
Total females entered | 34 | 40 | 37 | 33 | 260 | 47 |
IRR (95% CI) | 0.130 (0.088–0.193) | 0.153 (0.106–0.222) | 0.142 (0.097–0.207) | 0.126 (0.085–0.188) | 1.00a | 0.180 (0.127–0.256) |
p | 0.000 | 0.000 | 0.000 | 0.000 | – | 0.000 |
Total females exit in veranda trap (Exit rate in %) | 18 (52.9) | 23 (57.5) | 15 (40.5) | 17 (51.5) | 65 (25.0) | 24 (51.1) |
Odds ratio (95% CI) | 3.375 (1.627–7.001) | 4.059 (2.042–8.067) | 2.045 (1.002–4.176) | 3.187 (1.524–6.668) | 1.00a | 3.130 (1.655–5.920) |
p | 0.001 | 0.000 | 0.049 | 0.002 | – | 0.000 |
Total females blood fed (% blood feeding) | 23 (67.6) | 22 (55.0) | 21 (56.8) | 19 (57.6) | 246 (94.6) | 29 (61.7) |
% Blood feeding inhibition | 28.5 | 41.9 | 40.0 | 39.1 | – | 34.8 |
Odds ratio (95% CI) | 0.128 (0.053–0.311) | 0.075 (0.033–0.169) | 0.080 (0.035–0.185) | 0.083 (0.035–0.197) | 1.00a | 0.083 (0.038–0.180) |
p | 0.000 | 0.000 | 0.000 | 0.000 | – | 0.000 |
% Personal protection | 90.7 | 91.1 | 91.5 | 92.3 | 0.0 | 88.2 |
Total females dead (% total mortality) | 32 (94.1) | 32 (80.0) | 25 (67.6) | 22 (66.7) | 0 (0.0) | 26 (55.3) |
Odds ratio (95% CI) | 0.130 (0.027–0.636) | 0.521 (0.185–1.468) | 1.00a | 1.042 (0.384–2.828) | 1.683 (0.686–4.126) | |
p | 0.012 | 0.217 | – | 0.936 | 0.255 | |
% Mass killing effect | 12.3 | 12.3 | 9.6 | 8.5 | 0.0 | 10.0 |