THE READING ROOM
Two studies, two questions, no blended average
A 2022 UK life-table paper reports 11.23 years at age zero. A 2024 UK survival paper reports 12.5 years as estimated median survival. Treating those as rival readings of the same instrument misses the difference in data and the quantity being estimated.
Editorial team / by PawLine. Source-checked November 13, 2026. Not independently veterinary-reviewed.
Name the 2022 estimate precisely
Teng and colleagues used a hypothetical cohort life table based on 30,563 confirmed deaths from dogs in a UK primary-care sampling frame. Their age-zero life expectancy equates to the mean age at death in the life-table construction. The records and method are not the same as the later study.
Teng et al.: Life tables for UK companion dogs ↗Evidence for this context, not a review or endorsement of Longview.
Name the 2024 estimate precisely
McMillan and colleagues combined 584,734 unique dog records from 18 sources, including both alive and deceased dogs. They estimated median survival with survival analysis. The use of incomplete follow-up is important: a living dog's age at last information is not its eventual age at death.
McMillan et al.: Longevity of companion dog breeds ↗Evidence for this context, not a review or endorsement of Longview.
Do not average the headlines
A halfway value between 11.23 and 12.5 would not repair differences in estimand, sampling frame, time or record sources. This site offers no pooled result. The useful comparison is a short methods note: who was included, which outcome was calculated, and which limitations the authors describe.
Teng et al.: Life tables for UK companion dogs ↗Evidence for this context, not a review or endorsement of Longview.
Corrections travel with the source
The 2024 paper has an April 2024 correction to its Figure 3 caption for the Miniature Dachshund. The corrected caption is 14.0, not 12.2. This site does not reproduce a breed ranking, but checking the correction is still part of reading the source rather than copying an older image caption.
Author Correction: Figure 3 caption ↗Evidence for this context, not a review or endorsement of Longview.