Epidemiology and prevention of ischaemic heart disease in automobile industry workers.

Following on the epidemiological study of cardiovascular diseases carried out in the rural population of Northern Bohemia in 1970 a long-term ischaemic heart disease prevention programme was launched in a group of 2582 men aged between 30-59 years, worked of two automobile plants in the district of Mladá Boleslav. Under der programme "Protected Your Heart", sponsored by the Automobile Works National Enterprise (AZNP), workers were urged to adjust their food intake in keeping with the principles of rational nutrition, to stop smoking and to take regular after-work cross-country 4 km/1 hr walks. No such programme was carried out at the automobile plant LIAZ serving as control.