A study was made of the characteristics of older adults showing an interest in participating in a health education course given by peers. Determining the degree of interest in health education is important for assessing the impact on the target-population and evaluating the dissemination strategy. In the course 'Successful Aging' groups of alder adults came together to discuss health related issues. The course was given by senior health educators aged 55 years and over from the peer group. To determine interest in the course answer cards were sent with a letter of invitation to all independently living inhabitants aged between 55 an 79 in a Dutch community. The rate of expressed interest in the course was 5.8%. Interest was highest among females in the 55-64 age group, the unmarried and those with low wellbeing. Males in the age group 65-79, females aged 75-79, those with a lower socio-economic status and the inactive were comparatively less interested. Subscription to the course was distinguished from mere interest in the course. From those who expressed interest, more people of low socio-economic status, with a reduced level of wellbeing, many physical limitations and poor self-efficacy actually subscribed. It is concluded that the health education program will be continued and that special attention will be paid to groups that showed lower levels of uptake. Involving intermediates from these groups in the course development is recommended. (C) 1998 Elsevier Science Ireland Ltd.