Transfluthrin eave-positioned targeted insecticide (EPTI) reduces human landing rate (HLR) of pyrethroid resistant and susceptible malaria vectors in a semi-field simulated peridomestic space

Table 4 The adjusted odds ratio of mosquito landings and protective efficacy offered by EC and TG transfluthrin in the semi-field system, Bagamoyo, Tanzania

Transfluthrin EPTI	Mosquitoes	Landing in the presence of EPTI		Landing in the control
Transfluthrin EPTI	Mosquitoes	n (% landing [95% CI])^a	OR (95% CI)	n (% landing [95% CI])^a	OR (95% CI)
TG	Ifakara strain	500 (39.0 [32.9–45.2])	1	939, (73.4 [66.9–79.8])	1
	Mbita arabiensis	370 (29.5 [24.4–34.7])	0.65 (0.49–0.86)*	706 (55.2 [51.7–58.6])	0.43 (0.32–0.57)*
	Kingani strain	378 (28.9 [22.4–35.4])	0.62 (0.47–0.83)*	804 (62.8 [56.4–69.2])	0.60 (0.45–0.80)*
EC	Ifakara strain	341 (26.6 [21.2–32.1])	1	980 (76.6 [70.3–82.9)	1
	Mbita arabiensis	224 (17.5 [12.2–22.8])	0.58 (0.43–0.78)*	697 (54.5 [51.9–57.0])	0.34 (0.25–0.46)*
	Kingani strain	347 (27.1 [20.5–33.7])	1.01 (0.76–1.38)	774 (60.5 [56.6–64.4])	0.44 (0.33–0.59)*
EC	Kisumu susceptible	166 (12.9 [9.6–16.3])	1	647 (50.5 [50.0–51.0])	1
EC	Kisumu kdr	164 (12.8 [9.6–16.0])	0.99 (0.78–1.24)	648 (50.6 [50.1–51.1])	1.00 (0.86–1.17)

^aNumbers in the control and treatment refer to the total number of mosquitoes caught/released during each experiment; the percentage recaptured is in bracket. The percentage landing was calculated by dividing the number recaptured (n) by the total released (N = 1280). The ORs are adjusted for temperature, humidity, compartment, volunteers and all other factors in the table
*P-value < 0.05

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