Table 1 Outcomes adjusted for random effects due to cows, huts, trial Latin square rotation and trial night

% Mortality at 72 h (95% CI)

1.2^a (0.0–3.9)

27.4^b (10.6–38.2)

44.4^bc (30.9–57.8)

53.3^c (39.1–67.5)

% killing effect (95% CI)

–

24.8 (17.1–33.8)

26.5 (18.7–35.7)

37.2 (28.3–46.8)

% Blood fed (95% CI)

21.9^a (9.6–34.2)

10.5^a (3.0–18.1)

13.7^a (4.3–23.0)

18.8^a (7.6–30.1)

% Blood feeding inhibition

–

52.0

37.4

14.1

% Exiting (95% CI)

92.5^a (82.5–100)

89.4^a (77.5–100)

97.1^a (91.2–100)

94.4^a (86.4–100)

Predicated mean catches (95% CI)

1.3^a (0.8–1.7)

1.7^a (1.1–2.4)

1.2^a (0.7–1.7)

1.4^a (0.9–2.0)