Longevity category | Up to 9 years | 9–13 years | After 13 years | ||||||
---|---|---|---|---|---|---|---|---|---|
N | Mean (in kg/dog/year) | SEM | N | Mean (in kg/dog/year) | SEM | N | Mean (in kg/dog/year) | SEM | |
Expected (≥9 to ≤12.9 years) | 13 | 0.59 | 0.3 | 13 | −0.15 | 0.31 |  | N/A |  |
Long (≥13 to ≤15.5 years) | 15 | 0.52 | 0.28 | 15 | −0.91* | 0.28 | 15 | −1.41 | 0.68 |
Exceptional (>15.6 years) | 11 | 0.4 | 0.36 | 11 | 0.53* | 0.32 | 11 | −1.31 | 0.74 |