Table 7.
X2 test for association contributions for mean age (y) of death and owner experience (Expected value in brackets).
| Dogs | Factor | Group | Number of young dogs | Number of adult dogs | Number of mature dogs | Comparison |
|---|---|---|---|---|---|---|
| All | Owner experience | Experienced | 77 (75) | 299 (307) | 539 (529) | X2 2.92, P >0.05 |
| First time owner | 8 (10) | 48 (40) | 62 (69) | |||
| Experienced owners | Breeder | 26 (18) | 54 (70) | 134 (126) | X2 10.04, P <0.01 | |
| Experienced | 51 (59) | 285 (229) | 402 (410) | |||
| European | Owner experience | Breeder | 7 (5) | 21 (29) | 39 (36) | X2 2.69, P >0.05 |
| Experienced | 14 (16) | 93 (88) | 122 (125) | |||
| North American | Owner experience | Breeder | 16 (12) | 31 (40) | 88 (83) | X2 4.85, P >0.05 |
| Experienced | 33 (37) | 134 (125) | 258 (263) | |||
| Other | Owner experience | Breeder | 3 (2) | 2 (4) | 7 (6) | X2 3.57, P >0.05 |
| Experienced | 4 (6) | 18 (16) | 22 (23) |
Note: Breed type X2 tests are for 2 df.