Mortality of male members of the Danish semiskilled workers' union. Standardization by county

The mortality of male members of the Danish Semiskilled Workers' Union in 1973 has been analysed in an earlier publication. The aim of the present study was to see if previously indicated trends are being maintained after standardizing mortality rates by county for the period 1973-75. Although regional variations are seen, standardization by county produces only slight differences in age and cause-specific standardized mortality ratios. Earlier members of the Semiskilled Workers' Union, especially in younger age groups, are confirmed. Low mortality in older age groups, which show a deficit of deaths from circulatory diseases and other chronic illnesses, suggests the possibility of a survival population effect.