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Table 1 Comparison of mortality rates and knockdown time among three sources of Anopheles sinensis mosquitoes using the standard WHO deltamethrin resistance bioassay

From: Anopheles sinensis mosquito insecticide resistance: comparison of three mosquito sample collection and preparation methods and mosquito age in resistance measurements

    Mortality Knockdown time
Site Source of mosquitoes n Mean (%)* 95% confidence interval KT50(min)* 95% confidence interval
Anhui (Huainan county) Field-collected female adults 140 47.6a 42.4 - 52.8 97a 81.2 - 131.5
Female adults reared from field-collected larvae 240 31.7b 28.7 - 34.7 92a 72.3 - 155.5
  F1 adults from field blood-fed female 141 32.9b 27.9 - 37.9 101a 83.9 - 143.9
Hunan (Liuyang county) Field-collected female adults 180 24.9a 19.2 - 30.6 104 83.4 - 170.8
Female adults reared from field-collected larvae 234 15.5b 11.8 - 19.1
  F1 adults from field blood-fed female 150 15.1b 12.6 - 17.6
  Laboratory strain 125 99.0 98.6 - 99.4 15 14.7 - 16.1
  1. *For each site, the mortality rate or KT50that shares different letter indicates statistical difference at P < 0.05 using the Duncan multiple range test.
  2. —No mosquitoes were knocked down within the 60-min exposure time, thus KT50 could not be calculated.