Table 3.
Frequency of reported dog breeds (for dogs with a breed other than ‘mixed’) across patient age for those breeds that accounted for >1% of bites
| Breed | Total no. bites | 0–3 years | Four to six years | Seven years to 12 years | 13–18 years | >18 years | No. county registrations (%)* |
|---|---|---|---|---|---|---|---|
| Pit Bull | 1687 (27.2%) | 66 (20.7%) | 90 (6.0%) | 207 (30.4%) | 184 (36.7%) | 1140 (26.4%) | 886 (4.9%) |
| p | 1 | 1 | 1 | <0.01 | |||
| German Shepherd | 647 (10.5%) | 29 (9.1%) | 33 (8.9%) | 75 (11.0%) | 46 (9.2%) | 464 (10.7%) | 930 (5.2%) |
| p | 1 | 1 | 1 | 1 | |||
| Labrador Retriever | 448 (7.2%) | 24 (0.8%) | 30 (8.1%) | 52 (7.6%) | 30 (6.0%) | 312 (7.2%) | 1787 (10.0%) |
| p | 1 | 1 | 1 | 1 | |||
| Boxer | 282 (4.6%) | 14 (4.4%) | 13 (3.5%) | 29 (4.3%) | 20 (4.0%) | 206 (4.8%) | 580 (3.3%) |
| p | 1 | 1 | 1 | 1 | |||
| Rottweiler | 240 (3.9%) | 9 (2.8%) | 12 (3.2%) | 20 (2.9%) | 27 (5.3%) | 172 (4.0%) | 241 (1.4%) |
| p | 1 | 1 | 1 | 1 | |||
| Beagle | 202 (3.3%) | 17 (5.3%) | 6 (1.6%) | 24 (3.5%) | 18 (3.6%) | 137 (3.2%) | 682 (3.8%) |
| p | 1 | 1 | 1 | 1 | |||
| Jack Russell | 181 (2.9%) | 8 (2.5%) | 12 (3.2%) | 20 (2.9%) | 9 (1.8%) | 132 (3.1%) | 153 (0.86%) |
| p | 1 | 1 | 1 | 1 | |||
| Bulldog | 177 (2.9%) | 10 (3.1%) | 13 (3.5%) | 24 (3.5%) | 12 (2.4%) | 118 (2.7%) | 395 (2.2%) |
| p | 1 | 1 | 1 | 1 | |||
| Chihuahua | 160 (2.6%) | 11 (3.4%) | 13 (3.5%) | 18 (2.6%) | 6 (1.2%) | 112 (2.6%) | 778 (4.4%) |
| p | 1 | 1 | 1 | 1 | |||
| Husky | 145 (2.3%) | 7 (2.2%) | 9 (2.4%) | 6 (0.9%) | 13 (2.6%) | 110 (2.5%) | 226 (1.3%) |
| p | 1 | 1 | 0.53 | 1 | |||
| Golden Retriever | 140 (2.3%) | 6 (1.9%) | 9 (2.4%) | 6 (2.8%) | 14 (2.8%) | 90 (2.1%) | 1062 (6.0%) |
| p | 1 | 1 | 1 | 1 | |||
| Dachshund | 137 (2.2%) | 9 (2.8%) | 7 (1.9%) | 14 (2.1%) | 9 (1.8%) | 98 (2.3%) | 504 (2.8%) |
| p | 1 | 1 | 1 | 1 | |||
| Mastiff | 116 (1.9%) | 5 (1.6%) | 6 (1.6%) | 14 (2.1%) | 9 (1.8%) | 82 (1.9%) | 158 (0.90%) |
| p | 1 | 1 | 1 | 1 | |||
| Shih-Tzu | 115 (1.9%) | 18 (5.6%) | 12 (3.2%) | 13 (1.9%) | 8 (1.6%) | 64 (1.5%) | 756 (4.2%) |
| p | <0.01 | 1 | 1 | 1 | |||
| Poodle | 79 (1.6%) | 7 (2.2%) | 0 (0%) | 4 (0.6%) | 14 (2.8%) | 74 (1.7%) | 371 (2.1%) |
| p | 1 | 0.36 | 1 | 1 | |||
| Cocker Spaniel | 90 (1.5%) | 7 (2.2%) | 6 (1.6%) | 7 (1.0%) | 5 (1.0%) | 65 (1.5%) | 271 (1.5%) |
| p | 1 | 1 | 1 | 1 | |||
| Yorkshire Terrier | 84 (1.4%) | 1 (0.3%) | 9 (2.4%) | 10 (1.5%) | 8 (1.6%) | 56 (1.3%) | 633 (3.6%) |
| p | 1 | 1 | 1 | 1 | |||
| Great Dane | 79 (1.3%) | 5 (1.6%) | 8 (2.2%) | 11 (1.6%) | 0 (0%) | 55 (1.2%) | 96 (0.54%) |
| p | 1 | 1 | 1 | 0.33 | |||
| Australian Shepherd | 70 (1.1%) | 2 (0.6%) | 6 (1.6%) | 9 (1.3%) | 3 (0.6%) | 50 (1.2%) | 177 (0.99%) |
| p | 1 | 1 | 1 | 1 | |||
| Doberman Pinscher | 68 (1.1%) | 5 (1.6%) | 3 (0.8%) | 10 (1.5%) | 6 (1.2%) | 44 (1.0%) | 147 (0.82%) |
| p | 1 | 1 | 1 | 1 | |||
| Boston Terrier | 67 (1.1%) | 4 (1.3%) | 9 (2.4%) | 5 (0.7%) | 7 (1.4%) | 42 (1.0%) | 200 (1.1%) |
| p | 1 | 1 | 1 | 1 | |||
| Border Collie | 66 (1.1%) | 5 (1.6%) | 5 (1.4%) | 6 (0.9%) | 1 (0.2%) | 49 (1.1%) | 186 (1.0%) |
| p | 1 | 1 | 1 | 1 | |||
| Akita | 64 (0.9%) | 3 (0.9%) | 7 (1.9%) | 11 (1.6%) | 4 (0.8%) | 39 (0.9%) | 31 (0.12%) |
| p | 1 | 1 | 1 | 1 | |||
| Collie | 63 (1.0%) | 1 (0.3%) | 6 (1.6%) | 7 (1.0%) | 8 (1.6%) | 41 (0.9%) | 100 (0.56%) |
| p | 1 | 1 | 1 | 1 | |||
| Total | 6191 | 319 | 370 | 681 | 502 | 4319 | 17 823 |
Two-tailed p values are obtained by Fisher’s exact test followed by Bonferroni’s correction.
*
Estimated community prevalence derived from owner-reported data on dog registrations expiring in 2016 from the Allegheny County Treasurer, removing all mixed breed from data set prior to calculations.