Analysis of Life Expectancy and Causes of Death of Dogs and Cats in Japan Based on Veterinary Medical Record Data

Abstract

Understanding the longevity and causes of death in dogs and cats can provide helpful information in determining health promotion measures. Using the data of 2,133 dogs and cats that died between 1 April 2020 and 31 August 2021 obtained from 40 veterinary clinics that are members of Team HOPE, a cohort life table was created. The average life expectancy was 13.6 years for dogs and 12.3 years for cats. Neoplasia was the most common cause of death in dogs (18.4%), followed by cardiovascular diseases (17.4%) and urinary diseases (15.2%). Causes of death in cats were urinary diseases (29.4%), neoplasia (20.3%), and cardiovascular diseases (11.8%). The average life expectancy for dogs was expected to be extended by 0.6 and 0.5 years when death caused by neoplasia and cardiovascular diseases was removed respectively. Likewise, the average life expectancy for cats was expected to be extended by 1.6 and 1.0 years if death caused by urinary diseases and neoplasia was removed. The findings of this study could be used by pet owners and veterinary clinicians to introduce effective measures and promote the health care of dogs and cats by prioritizing diseases according to the causes of death.