The number of dogs in different tick infestation categories, that were walked different numbers of times per week. A: owners who reported that they never saw ticks, Y = exp(1.91 - 0.33*X), F = 38.47, P < 0.001, r2 = 86.5, n = 24). B: owners reporting a medium infestation frequency, Y = 0.083 + 1.047*X, F = 7.81, P = 0.03, r2 = 55.7, n = 30). C: owners reporting a high infestation frequency, Y = −0.381 + 1.056*X, F = 45.6, P = 0.006, r2 = 94.1, n = 15). Data points at 0 represent dogs walked less than once per week but greater than once per month.