This article brings an overview of data collected in a follow-up study of chronic diseases in general adult population residing in inland and coastal Croatia, that was performed from 1969 to 2007. Despite the selection bias, the sample of volunteers examined in the last follow-up (2005 - 2007), now older than 70, remained as representative as in the previous three follow-ups (1969, 1972, and 1982). Here we report on the design of this prospective cohort study and on papers that have been published as a result. The obtained data could help in promoting healthy living and longevity. The results of our survey might also contribute to the development and implementation of national or international strategies and action plans intended to reduce health risks, and particularly to control and prevent chronic diseases.