Our objective was to estimate the excess mortality and the reduction in lif
e expectancy related to diabetes mellitus. We developed a life table to des
cribe the Dutch population in two states, diabetic and non-diabetic, using
age- and sex-specific prevalence of diabetes mellitus and risks of dying fo
r diabetic subjects. We compared the calculated excess deaths with register
ed deaths. The cause-of-death registration practice underestimates diabetes
-related mortality. The method used in this study, combining mortality data
with data from epidemiologic studies, provides an assessment of the impact
of diabetes on the Dutch population.