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Table 3 Geometric (arithmetic) mean counts of live Amblyomma americanum ticks

From: Laboratory evaluations of the immediate and sustained efficacy of lotilaner (Credelio™) against four common species of ticks affecting dogs in North America

 

Day

Untreated control

Lotilaner

Comparison

Mean

Range

Mean

Range

Geometric (arithmetic) mean efficacy (%)

 

Study 5

2

18.1 (18.8)

12–28

0.0 (0.0)

0–0

100 (100)

t (7) = 29.3, P < 0.0001

9

16.5 (17.8)

9–29

0.1 (0.1)

0–2

99.1 (98.6)

t (7) = 18.4, P < 0.0001

16

18.0 (18.6)

12–24

0.0 (0.0)

0–0

100 (100)

t (7) = 29.1, P < 0.0001

23

16.0 (16.4)

12–23

0.0 (0.0)

0–0

100 (100)

t (7) = 35.6, P < 0.0001

30

16.3 (16.5)

12–20

0.0 (0.0)

0–0

100 (100)

t (7) = 53.3, P < 0.0001

Study 6

2

19.4 (20.0)

14–34

0.0 (0.0)

0–0

100 (100)

t (9) = 38.8, P < 0.0001

9

16.2 (17.5)

5–27

0.1 (0.1)

0–1

99.0 (98.9)

t (9) = 18.3, P < 0.0001

16

16.9 (18.8)

5–36

0.0 (0.0)

0–0

100 (100)

t (9) = 18.0, P < 0.0001

23

18.1 (18.7)

10–24

0.0 (0.0)

0–0

100 (100)

t (9) = 35.0, P < 0.0001

30

18.3 (19.3)

8–27

0.0 (0.0)

0–0

100 (100)

t (9) = 26.6, P < 0.0001