English Abstract In the period March to June 1990 the thirty-year
follow-up examinations of the Zutphen Study were carried out. All 718 men
of the cohort who were still alive in 1990 were invited to participate in
the study. Of these men, 560 (78%) were examined. The age of these men
varied between 70 and 89. For all 158 men who did not participate a
non-response questionnaire was filled out. The examinations consisted of
four parts: a medical examination, a glucose tolerance test, a dietary
survey and a questionnaire about lifestyle factors. The examinations were
carried out in a similar way as in 1985. The parts that were added to the
examination mainly concerned functional and mental capacities in older
age.
