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Table 1 Demographics of the study dogs

From: Dog owner flea/tick medication purchases in the USA

  Bravecto® Nexgard® Comfortis®
Number of dogs 58,731 118,594 54,240
Dog age (mean years ± SD) 5.3 ± 3.9 5.4 ± 3.8 5.8 ± 3.9
Dog age block (number of dogs, %)
 6 months to 1.0 year 11,940 (20.3) 22,427 (18.9) 8128 (15.0)
 1.1–8.0 years 33,888 (57.7) 70,008 (59.0) 32,881 (60.6)
 8.1–12.0 years 10,269 (17.5) 20,774 (17.5) 10,159 (18.7)
 Over 12.1 years 2634 (4.5) 5385 (4.5) 3072 (5.7)
Dog body weight
Mean weight ± SD (kg) 17.4 ± 11.7 18.1 ± 13.0 15.9 ± 12.7
Dog weight range (number of dogs, %)
 0–5.4 kg 10,360 (17.6) 22,889 (19.3) 14,100 (26.0)
 5.5–11.3 kg 14,870 (25.3) 29,041 (24.5) 14,136 (26.1)
 11.4–22.6 kg 11,740 (20.0) 20,780 (17.5) 8092 (14.9)
 22.7–45.3 kg 20,755 (35.3) 42,401 (35.8) 15,986 (29.5)
 45.4–90.7 kg 448 (0.8) 2869 (2.4) 1171 (2.2)
 90.8+ kg 16 (0.0) 27 (0.0) 7 (0.0)
Missing data 542 (0.9) 587 (0.5) 748 (1.4)