The incidence of insulin-dependent diabetes mellitus (100M) varies
dramatically across racial groups and countries, with annual
age-adjusted rates of approximately 40/100,000 per year in Finland, but
only 0.51100,000 per year in China. Although reasons for these marked
geographic differences are unknown, it is likely that genetic variations
across populations play a m or role. To determine the contribution of
genetic factors to the global patterns of 100M incidence, international
comparative studies are now being undertaken as part of the WHO
Multinational Project for Childhood Oiabetes, known as the DIAMOND
Project. It is, therefore, necessary to develop and implement
epidemiologic standards for these investigations which can be applied
across populations. This will ensure that comparable data are obtained
in all countries, and that relevant scientific questions can be properly
addressed. The development of standards for molecular epidemiologic
studies of 100M is the of the NATO Advanced Research Workshop. During
this meeting at the objective University of Pittsburgh, scientists from
across the world convened to discuss issues relating to the
standardization of: 1. the collection of family history data to assess
the risk of 100M in first degree relatives, 2. case-control molecular
epidemiology studies of 100M susceptibility, 3. HLA family studies, 4.
laboratory methods and ONA technology transfer for genetic marker
evaluations.