["Educational level is a strong determinant of perceived health, and also an important component in the socioeconomic concept. The aim of this study was to analyze a number of social conditions and lifestyle factors that might explain differences in self-reported health between the populations in two different social environments, one white-collar city and one blue-collar city. These ''twin cities'' are served by the same healthcare organisation, but differ in terms of social history and current social structure.", 'The material consisted of responses to a community-based survey of individuals aged between 20 and 64 years, with an overall response rate of 49%. Differences in self-reported health status were tested with chi-square tests and regression analysis.', 'We found significant differences in perceived health between the two populations. These differences in self-reported health could not be explained by differences in demographic factors, lifestyles, or living conditions. However, when the educational level of the respondents was taken into account, the differences in perceived health diminished.'] Is educational level a crucial factor for good perceived health in the local community?