Table 2.
Demographics of dogs enrolled as veterinary patients and included in the effectiveness-evaluable population for the prevention of heartworm disease (Dirofilaria immitis) in client-owned dogs in the USA
| Demographic | US heartworm prevention field study | |
|---|---|---|
| Credelio Plus (n = 112) |
Milbemycin oxime + lufenuron (n = 126) |
|
| Purebred (n) (%) | 79 (70.5) | 57 (45.2) |
| Crossbred/mongrel (n) (%) | 33 (29.5) | 69 (54.7) |
| Age, mean (months) | 47.8 | 48.0 |
| Age, range (months) | 2.0–158.0 | 2.0–163.0 |
| Age group < 12 months (n) (%) | 35 (31.3) | 36 (28.6) |
| Age group ≥ 12 months (n) (%) | 77 (68.8) | 90 (71.4) |
| Male (n) (%) | 61 (54.5) | 53 (42.1) |
| Female (n) (%) | 51 (45.5) | 73 (57.9) |
| Body weight, mean (kg) | 16.0 | 18.0 |
| Body weight, range (kg) | 2.1–50.7 | 2.0–61.1 |