The present study on life expectancy and cause of death is based upon
data from 9,248 dogs. The entire sample showed a life expectancy of 10
.0 years. The most frequent cause of death was tumors (27.3%), followe
d by cardiac and circulatory ailments (16.3%). The causes of death als
o showed a breed-specific distribution. The mean age attained in vario
us breeds differed, ranging from 6.8 years in the Berner Sennenhund to
13.0 years in the Pudel. Dogs of mixed breeding tended not to differ
from purebreds either in their life expectancy or in their cause of de
ath.