The role of genetic and biological factors in sex differences in mortality
The contribution of genetic factors to sex differences in mortality is examined. The importance of environmental factors as an influence on the relationship between genetic factors and mortality is stressed, with attention to the presence or absence of mortality from such factors as infectious diseases and to the impact of cultural factors on mortality. Sections are also included in which sex differentials in mortality from ischemic heart disease and cancer are analyzed. Finally, estimates of the relative contribution of genetic factors and environmental factors to sex differences in mortality are discussed.