ABSTRACT
The decline of mortality in the West was the dominant demographic feature of the nineteenth century. While the continuing decline of mortality in France, England, and other countries is the outcome of joint progress in science, the economy, medical-social facilities, and the cultural level of the population, the decline in underdeveloped countries has resulted essentially from external medical help. Mortality begins at quite a high level at 0 years of age and then diminishes rapidly. As well as the purely statistical analysis of mortality, there is analysis by cause of death. Mortality among infants is measured by the infant mortality rate, which is in reality a mortality quotient. The past trends of infant mortality present certain similarities with the trends of total mortality. Exogenous mortality is a mortality that is readily reduced and ought to disappear through the full utilization of present medical resources.
