Description of population of Rottweilers included in a historical cohort study of bone sarcoma risk
| No. of dogs | 683 |
| No. of households | 402 |
| Residence | |
| United States (45 states) | 648 (94.9%) |
| Canada | 35 (5.1%) |
| Status at time of questionnaire | |
| Alive | 55% |
| Deceased | 45% |
| Follow-up duration (mean; range) | |
| Dogs with bone sarcoma | 8.8 (1.3–13.2) yr |
| Dogs without bone sarcoma | 8.6 (1.7–15.6) yr |
| Age at Death (mean± SD) | |
| Intact male | 9.3 ± 2.5 yr |
| Castrated male | 9.2 ± 2.5 yr |
| Intact female | 7.5 ± 2.4 yr |
| Spayed female | 9.8 ± 2.4 yr |
| Dogs with bone sarcoma | 8.8 ± 2.0 yr |
| Dogs without bone sarcoma | 9.5 ± 2.6 yr |
| Appendicular bone sarcoma | |
| Age at diagnosis (median; range) | 8.0 (1.3–13.0) yr |
| Intact male | 8.0 (5.0–12.0) yr |
| Castrated male | 8.0 (5.0–13.0) yr |
| Intact female | 7.5 (4.0–9.0) yr |
| Spayed female | 9.0 (1.3–11.0) yr |
| Skeletal location | |
| Proximal humerus | 32 (37.2%) |
| Distal radius | 16 (18.6%) |
| Distal femur | 10 (11.6%) |
| Distal tibia | 9 (10.5%) |
| Other | 19 (22.1%) |
| Cause of death (% of 305 deaths) | |
| Cancer | 64.3% |
| Gastrointestinal disease | 7.2% |
| Neurological disease | 4.3% |
| Cardiovascular disease | 3.9% |
| Old age | 3.6% |
| Osteoarthritis | 3.3% |
| Renal disease | 2.6% |
| Endocrine disease | 2.6% |
| Other | 3.0% |
| Unknown | 5.2% |
| No. of dogs | 683 |
| No. of households | 402 |
| Residence | |
| United States (45 states) | 648 (94.9%) |
| Canada | 35 (5.1%) |
| Status at time of questionnaire | |
| Alive | 55% |
| Deceased | 45% |
| Follow-up duration (mean; range) | |
| Dogs with bone sarcoma | 8.8 (1.3–13.2) yr |
| Dogs without bone sarcoma | 8.6 (1.7–15.6) yr |
| Age at Death (mean± SD) | |
| Intact male | 9.3 ± 2.5 yr |
| Castrated male | 9.2 ± 2.5 yr |
| Intact female | 7.5 ± 2.4 yr |
| Spayed female | 9.8 ± 2.4 yr |
| Dogs with bone sarcoma | 8.8 ± 2.0 yr |
| Dogs without bone sarcoma | 9.5 ± 2.6 yr |
| Appendicular bone sarcoma | |
| Age at diagnosis (median; range) | 8.0 (1.3–13.0) yr |
| Intact male | 8.0 (5.0–12.0) yr |
| Castrated male | 8.0 (5.0–13.0) yr |
| Intact female | 7.5 (4.0–9.0) yr |
| Spayed female | 9.0 (1.3–11.0) yr |
| Skeletal location | |
| Proximal humerus | 32 (37.2%) |
| Distal radius | 16 (18.6%) |
| Distal femur | 10 (11.6%) |
| Distal tibia | 9 (10.5%) |
| Other | 19 (22.1%) |
| Cause of death (% of 305 deaths) | |
| Cancer | 64.3% |
| Gastrointestinal disease | 7.2% |
| Neurological disease | 4.3% |
| Cardiovascular disease | 3.9% |
| Old age | 3.6% |
| Osteoarthritis | 3.3% |
| Renal disease | 2.6% |
| Endocrine disease | 2.6% |
| Other | 3.0% |
| Unknown | 5.2% |