An intervention study of men living in the Community of Habo in southwestern Sweden has been carried out. All men aged 33-42 and living in the community were invited. Altogether 652 men participated. The study included a questionnaire, an interview made by a nurse, anthropometric measurements, blood pressure measurements, measurements of respiratory function and work performance capacity, and blood sampling for chemical analyses. The participation rate was high, 86.1%, after one mail invitation even considering the fact that two reminders were sent. Most of the non-participants had recently been in contact with the health care organisation, either because they were high-consumers of health care, or because they had attended a health examination at work. A health profile was worked out comprising 11 different potential risk factors for coronary heart disease. This health profile turned out to be a useful educational tool when discussing the results of the examination with the participants. Risk points were given according to certain predetermined criteria. The distribution of risk factors was similar in the different ages studied. Most of the participants had at least one risk factor as defined, but many of them had two or more risk factors.