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Table 2 Geometric (arithmetic) mean counts of live Dermacentor reticulatus ticks in Study 2

From: Laboratory evaluations of the immediate and sustained effectiveness of lotilaner (Credelio™) against three common species of ticks affecting dogs in Europe

Tick species Day Untreated control Lotilaner Comparison
Mean Range Mean Range Efficacy (%)  
Dermacentor reticulatus 2 45.6 (45.8) 40–52 0.0 (0.0) 0–0 100 (100) t (14) = 116.7, P < 0.0001
9 34.6 (35.0) 26–42 0.0 (0.0) 0–0 100 (100) t (14) = 60.7, P < 0.0001
16 37.3 (38.0) 23–48 0.1 (0.1)a 0–1 99.8 (99.7) t (14) = 31.1, P < 0.0001
23 32.7 (33.4) 19–42 0.0 (0.0) 0–0 100 (100) t (14) = 42.8, P < 0.0001
30 29.8 (31.6) 16–48 0.0 (0.0) 0–0 100 (100) t (14) = 26.0, P < 0.0001
37 28.1 (29.3) 15–44 0.0 (0.0) 0–0 100 (100) t (14) = 30.6, P < 0.0001
  1. aA single live free tick was found on one dog in the treated group