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Table 1 Mortality rates and knockdown times of Anopheles mosquitoes exposed to deltamethrin in Myanmar

From: Community structure and insecticide resistance of malaria vectors in northern-central Myanmar

Species group Female adults from cow-baited tent collection (CBTC) Female adults reared from field-collected larvae (RFCL) P-value
n KT50/min (95% CI) MR (%) (mean ± SE) Status n KT50/min (95% CI) MR (%) (mean ± SE) Status
Barbirostris 170 24.9(22.4–27.6) 81.1 ± 3.2 R 166 26.6(24.3–29.2) 71.5 ± 3.0 R 0.0462
Hyrcanus 260 16.5(14.8–18.5) 77.9 ± 2.7 R 168 21.1(18.7–23.7) 67.9 ± 3.5 R 0.0241
Annularis 144 17.6(15.4–20.1) 98.7 ± 0.9 S 115 18.8(16.8–21.2) 93.9 ± 1.0 PR 0.0052
Funestus 110 11.6(10.4–13.0) 100 S 148 15.8(14.1–17.6) 97.6 ± 0.7 PR 0.0426
Vagus 0 na na na 102 20.6(18.4–23.1) 72.5 ± 2.9 R na
Tessellatus 93 13.3(11.5–15.3) 96.7 ± 3.2 PR 0 na na na na
Kochi 64 12.9(11.1–14.9) 100 S 56 19.3(17.5–21.5) 100 S na
  1. KT50, time to knockdown 50% mosquitoes; MR, mortality rate; CI, confidence interval; S, susceptible (mortality rate ≥ 98%); SE, standard error; PR, probably resistant (mortality rate 90–97%); R, resistant (mortality rate < 90%). Values for P < 0.05 indicate significant difference in mortality rates between the two sampling methods (CBTC and RFCL). An An. sinensis susceptible laboratory strain was used as a control for comparison