Manifestations and Forms of Differential Ageing in a Metallurgical Plant

In France, as abroad, the comparison of mortality data between different social strata shows that longevity varies clearly according to socioprofessional category. The social class not only defines the differences in access to culture and wealth. It also covers differences in terms of life expectancy (Desplanques, 1976; Fox and Adelstein, 1978; Marmot, and Mcdowall, 1986).