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Table 3 The adjusted odds ratio of mosquito landings and protective efficacy offered by EC and TG transfluthrin in the semi-field system, Bagamoyo, Tanzania

From: 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

Transfluthrin EPTI

Mosquitoes

Landing in the presence EPTI

Landing in the control (reference)

Protective efficacy (% [95% CI])

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])

0.22 (0.18–0.26)*

939 (73.4 [66.9–79.8])

1

46.2 (45.6–65.5)

Mbita arabiensis

370 (29.5 [24.4–34.7])

0.33 (0.28–0.39)*

706 (55.2 [51.7–58.6])

1

46.4 (37.9–54.9)

Kingani strain

378 (28.9 [22.4–35.4])

0.23 (0.19–0.27)*

804 (62.8 [56.4–69.2])

1

54.9 (41.6–64.1)

EC

Ifakara strain

341 (26.6 [21.2–32.1])

0.17 (0.14–0.20)*

980 (76.6 [70.3–82.9])

1

65.0 (57.0–72.2)

Mbita arabiensis

224 (17.5 [12.2–22.8])

0.23 (0.19–0.27)*

697 (54.5 [51.9– 57.0])

1

67.6 (57.6–77.6)

Kingani strain

347 (27.1 [20.5–33.7])

0.57 (0.42–-0.78)*

774 (60.5 [56.6–64.4])

1

55.6 (45.6–65.5)

EC

Kisumu susceptible

166 (12.9 [9.6–16.3])

0.14 (0.12–0.17)*

647 (50.5 [50.0–51.0])

1

74.3 (67.7–80.9)

Kisumu kdr

164 (12.8 [9.6–16.0])

0.14 (0.11–0.17)*

648 (50.6 [50.1–51.1])

1

75.1 (69.2–82.2)

  1. 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 OR is adjusted for temperature, humidity, compartment, volunteers and all other factors in the table
  2. *P-value < 0.05