The aim of the study was to describe four health related lifestyle characteristics-smoking, exercise, alcohol and food consumption-among Finnish men in 1982-1990. How do unhealthy patterns of behaviour vary according to socio-demographic factors, and do they aggregate or accumulate? The data was compiled in connection with a larger programme entitled 'Monitoring Health Behaviour among the Finnish Adult Population' and conducted by the National Public Health Institute. In the programme a postal questionnaire has been sent annually to a random sample of Finns (N = 5000, resp. rate 70-85%). In this paper, food consumption patterns are described by the use of butter, high-fat milk, coffee sugar and vegetables. The other patterns of behaviour are each measured by one variable. The degree of accumulation is analyzed by comparing the observed and expected (assuming independent occurrence) proportions for simultaneous occurrence of 3-4 unhealthy behaviour patterns. The proportion of men displaying 3-4 unhealthy behaviour patterns has decreased, mostly because of dietary changes. The majority of the men belonged to the intermediate group of 1-2 unhealthy behaviour patterns, and their proportion remained practically unchanged throughout the study period. Unhealthy behaviour was more common in lower educational groups, especially among middle-aged (30-49) and divorced men with a low educational level. Despite the decreasing prevalence of unhealthy behaviour, the degree of accumulation did not change. Accumulation of unhealthy behaviour was much less pronounced among non-smokers than among smokers. This implies that smokers are consistent in their unhealthy behaviour. Smoking might be the gateway to an unhealthy lifestyle in general.
