Data on over 222,000 Swedish dogs enrolled in life insurance in 1992 a
nd 1993 were analysed, There were approximately 260 deaths per 10,000
dog-years at risk, Breed-specific mortality rates and causes of death
are presented for breeds with more than 500 dogs at risk that had cons
istently high or low rates. Breed-specific mortality ranged from less
than I per cent to more than II per cent. True rates and proportional
statistics for the cause of death were calculated for the entire insur
ed population (250 breeds) and cause-specific mortality rates were cal
culated for the breeds with the highest risk of dying of the most comm
on causes, Trauma, tumours and problems related to the locomotor syste
m together accounted for more than 40 per cent of all deaths or euthan
asias, Although limited to insured dogs, these data cover approximatel
y one-third of all Swedish dogs and provide baseline mortality data fo
r further population-based studies on health and disease.