Occupation and education in relation to risk factors of ischaemic heart disease in the male industrial population.

In a sample of 3,757 men aged 40-50 years, all employees of a large industrial plant, the authors studied the prevalence of several risk factors (RF) of ischaemic heart disease (IHD) in relationship to profession and education of probands. Blue collar workers were more frequently heavy smokers and regular alcohol consumers than white collars. Compared with other workmen professions a tendency towards a higher risk profile was present in employees doing strenuous manual work.