TABLE 2

Numbers and proportions of dogs achieving a typical life span (average expected age of 12 years) and an exceptional life span (age of≥15.6 years)

GroupTotal dogsDogs reaching typical life spanDogs reaching exceptional life span
Nn%*95% CIn%†95% CI
Longevity study393589.7a74.8 to 96.71128.20a15.6 to 45.1
KC survey57430252.61ab48.4 to 56.8244.18b2.8 to 6.3
‘Restricted’241770.83ab48.8 to 86.600bNA
‘Control’24729.16b13.4 to 51.300bNA
  • *Proportions (%) with different superscripts are significantly different, P<0.0001.

  • †Proportions (%) with different superscripts are significantly different, P<0.0001.

  • CI, confidence interval; KC, Kennel Club.