Table 1. Proportion with disease history by age category.
| Disease | Puppy (<1yr) | Adolescent (1 to <3yr) | Young Adult (3 to <7yr) | Older Adult (7 to <11yr) | Senior (≥11yr) | Overall |
|---|---|---|---|---|---|---|
| N = 591 | N = 4622 | N = 8249 | N = 7666 | N = 6413 | N = 27541 | |
| Skin | 40 (7%) | 796 (17%) | 2181 (26%) | 2556 (33%) | 2342 (37%) | 7915 (29%) |
| Infection/Parasites | 147 (25%) | 1269 (27%) | 2291 (28%) | 2009 (26%) | 1623 (25%) | 7339 (27%) |
| Bone/Orthopedic | 7 (1%) | 239 (5%) | 849 (10%) | 1699 (22%) | 2493 (39%) | 5287 (19%) |
| Gastrointestinal | 39 (7%) | 488 (11%) | 1059 (13%) | 1158 (15%) | 1170 (18%) | 3914 (14%) |
| Ocular | 31 (5%) | 283 (6%) | 586 (7%) | 906 (12%) | 1819 (28%) | 3625 (13%) |
| Ear/Nose/Throat | 19 (3%) | 302 (7%) | 745 (9%) | 916 (12%) | 1587 (25%) | 3569 (13%) |
| Kidney/Urinary | 14 (2%) | 153 (3%) | 406 (5%) | 591 (8%) | 957 (15%) | 2121 (8%) |
| Cancer/Tumors | 1 (<1%) | 21 (<1%) | 177 (2%) | 586 (8%) | 966 (15%) | 1751 (6%) |
| Cardiac | 3 (<1%) | 45 (<1%) | 167 (2%) | 440 (6%) | 912 (14%) | 1567 (6%) |
| Brain/Neurologic | 2 (<1%) | 25 (<1%) | 188 (2%) | 359 (5%) | 750 (12%) | 1324 (5%) |
| Liver/Pancreas | 2 (<1%) | 24 (<1%) | 125 (2%) | 277 (4%) | 542 (8%) | 970 (4%) |
| Respiratory | 4 (<1%) | 53 (1%) | 132 (2%) | 242 (3%) | 519 (8%) | 950 (3%) |
| Endocrine | 0 (<1%) | 8 (<1%) | 77 (<1%) | 310 (4%) | 518 (8%) | 913 (3%) |
Source: Data from the Dog Aging Project for N = 27,541 dogs included in the 2020 data release.