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 2 Generalised linear model output estimating the effect of EC/TG transfluthrin and mosquito strain on human landing rate in the semi-field system, Bagamoyo, Tanzania

Variables	Experiment 1, TG transfluthrin- (5.25 g)		Experiment 2, EC transfluthrin (5.25 g)		Experiment 3, EC transfluthrin (5.25 g)
Variables	OR*	P-value	OR^a	P-value	OR^a	P-value
Treatment
Control	1		1		1
Transfluthrin	0.22 (0.18–0.26)	< 0.001	0.10 (0.08–0.12)	< 0.001	0.14 (0.12–0.17)	< 0.001
Strain (in control)
Ifakara strain (susceptible)	1		1
Mbita strain (metabolic)	0.43 (0.32–0.57)	< 0.001	0.34 (0.26–0.46)	< 0.001	–	–
Kingani strain (metabolic)	0.60 (0.45–0.80)	< 0.001	0.44 (0.33–0.59)	< 0.001	–	–
Kisumu susceptible	–	–	–	–	1
Kisumu kdr	–	–	–	–	1.0 (0.86–1.17)	0.05
Volunteers
Volunteer 1	1		1		1
Volunteer 2	0.88 (0.69–1.14)	0.36	1.07 (0.84–1.39)	0.60	1.20 (0.99–1.46)	0.06
Volunteer 3	0.76 (0.59–0.98)	0.04	0.96 (0.74–1.24)	0.77	1.19 (0.98–1.44)	0.07
Volunteer 4	0.83 (0.72–0.95)	0.001	0.90 (0.78–1.04)	0.17	1.14 (0.94–1.36)	0.18
Compartment
Compart 1	1		1		1
Compart 2	0.90 (0.81–0.99)	0.04	0.79 (0.71–0.87)	< 0.001	0.93 (0.81–1.07)	0.30
Treatment * strain
Transfluthrin * Ifakara strain	1		1
Transfluthrin * Mbita strain	1.50 (1.18–1.91)	< 0.001	1.67 (1.29–2.17)	< 0.001	–	–
Transfluthrin * Kingani strain	1.03 (0.82–1.32)	0.75	2.29 (1.78–2.94)	< 0.001	–	–
Transfluthrin * Kisumu susceptible	–	–	–	–	1
Transfluthrin * Kisumu kdr	–	–	–	–	0.98 (0.74–1.30)	0.90

^aOdds ratio (OR) was adjusted for temperatures, humidity and all other variables in the table

ISSN: 1475-2875