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Table 2 Frequency (% (n)) of kdr alleles in three An. sinensis population from Henan province

From: Knockdown resistance of Anopheles sinensis in Henan province, China

County

Sample size(n)

L1014 TTG

L1014C (TGT)

L1014F (TTT + TTC)

Population kdr mutation frequency (TGT + TTT + TTC + TGG)

Kaifeng

49

0 (0)

26.53 (13)

73.47 (36)

100 (49)a

Tongbai

29

62.07 (18)

13.79 (4)

24.14 (7)

37.93 (11)

Tanghe

14

7.14 (1)

50.00 (7)

42.86 (6)

92.86 (13)b

Pingqiao

11

45.45 (5)

36.36 (4)

18.18 (2)

54.55 (6)

Shihe

6

50.00 (3)

16.67 (1)

33.33 (2)

50.00 (3)

Yongcheng

16

37.50 (6)

31.25 (5)

31.25 (5)

62.50 (10)

Total

125

26.40 (33)

27.20 (34)

46.40 (58)

73.60 (92)

  1. Note: a. the frequency of kdr mutation in Kaifeng county was higher than that in Tongbai, Pingqiao, Shihe, and Yongcheng county (P < 0.001); b. the frequency of kdr mutation in Tanghe county was higher than that in Tongbai county (P = 0.001).