Skip to main content

Table 3 Mean ages and body weights for the three longevity groups of dogs in July 2004

From: Exceptional longevity and potential determinants of successful ageing in a cohort of 39 Labrador retrievers: results of a prospective longitudinal study

Longevity category

N

Mean body weight (kg)

SD

Min–max

Mean age (years)

SD

Min–max

Expected (≥9 to ≤12.9 years)

13

29.4

4.6

20.2–37.40

6.5*

0.6

5.3–7.6

Long (≥13 to ≤15.5 years)

15

29.4

4.3

21.1–41.4

6.4#

0.9

5.4–7.9

Exceptional (≥15.6 years)

11

26.8

3.7

19.2–33.1

7.4*#

0.8

6.0–8.5

  1. Means among longevity groups were compared using analysis of variance with post hoc pairwise comparisons; mean body weights were not significantly different (P = 0.36) whilst means within the age column that share an asterisk (*) or a hash (#) were significantly different (P = 0.01)
  2. N number of dogs, SD standard deviation, Min–max range from minimum to maximum values