[Mortality among the workers of the Instituto Mexicano del Seguro Social from 1983 to 1987]. / La mortalidad de los trabajadores del Instituto Mexicano del Seguro Social de 1983 a 1987.

A study on mortality of 2,268 workers of the Mexican Social Security Institute was done during 1983-1987 in order to obtain accurate information to specifically determine to those, activities which promote the health and improve the life conditions of the workers of the aforementioned institution. This information relates to the first step of the study, so it doesn't lead us to value judgements, because it would fall into speculations. However, it creates an important data to subsequently explore, by means of further studies, in the casualty of the existing results.