In epidemiology demographics refer to the personal characteristics including race or ethnicity, sex, sexual identity, age, disability, socioeconomic status, and geographic location which may be related to illness, injury, disability, and death. This volume Demographics of Disease brings together the demographic information of the leading causes of death by disease in the United States. Its goal is to help readers to better understand the risk they may face from leading causes of death by disease, and inform them on how preventive measures may help them live longer and healthier lives.