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Table 3 kdr mutant allele frequency at codon 1532 of Ae. albopictus and association with pyrethroid resistance in BS and YP populations from China

From: Correlation between adult pyrethroid resistance and knockdown resistance (kdr) mutations in Aedes albopictus (Diptera: Culicidae) field populations in China

Insecticide Population Phenotype n kdr allele
I1532T I1532 OR (95% CI)
Deltamethrin BS R 32 6(9.38) 58(90.63) 2.24 (0.54, 9.37)
S 34 3(4.41) 65(95.59)
YP R 28 6(10.71) 50(89.29) 0.39 (0.14, 1.05)
S 38 18(23.68) 58(76.32)
Total R 161 12(3.73) 310(96.27) 0.49* (0.23, 1.00)
S 142 21(7.39) 263(92.61)
Permethrin BS R 25 4(8.00) 46(92.00) 0.80 (0.23, 2.75)
S 46 9(9.78) 83(90.22)
YP R 23 7(15.22) 39(84.78) 0.74 (0.28, 2.01)
S 36 14(19.44) 58(80.56)
Total R 138 11(3.99) 265(96.01) 0.64 (0.31, 1.33)
S 188 23(6.12) 353(93.88)
  1. Note: n indicates the sample number. S was the susceptible phenotype; R indicates the resistant phenotype. Data outside brackets indicate the number of individuals; data inside brackets indicate frequency (%).
  2. *P < 0.05