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

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

Insecticide	Population	Phenotype	n	kdr allele
Insecticide	Population	Phenotype	n	I1532T	I1532	OR (95% CI)
Deltamethrin	BS	R	32	6(9.38)	58(90.63)	2.24 (0.54, 9.37)
	BS	S	34	3(4.41)	65(95.59)	2.24 (0.54, 9.37)
	YP	R	28	6(10.71)	50(89.29)	0.39 (0.14, 1.05)
	YP	S	38	18(23.68)	58(76.32)	0.39 (0.14, 1.05)
	Total	R	161	12(3.73)	310(96.27)	0.49^* (0.23, 1.00)
	Total	S	142	21(7.39)	263(92.61)	0.49^* (0.23, 1.00)
Permethrin	BS	R	25	4(8.00)	46(92.00)	0.80 (0.23, 2.75)
	BS	S	46	9(9.78)	83(90.22)	0.80 (0.23, 2.75)
	YP	R	23	7(15.22)	39(84.78)	0.74 (0.28, 2.01)
	YP	S	36	14(19.44)	58(80.56)	0.74 (0.28, 2.01)
	Total	R	138	11(3.99)	265(96.01)	0.64 (0.31, 1.33)
	Total	S	188	23(6.12)	353(93.88)	0.64 (0.31, 1.33)

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 (%).
^*P < 0.05

ISSN: 2049-9957