Epidemiology is the study of the frequency and distribution of diseases and factors related to the development of diseases. Systemic lupus erythematosus (SLE) is a rare, chronic inflammatory autoimmune disease that affects many tissues and organs, whose female-to-male incidence ratio is 6:10 for childbearing age. Its chronic intractable nature has a significant impact on medical care utilization, activities of daily living, and quality of life. However, the etiology of SLE has not yet been elucidated in detail, although genetic factors as well as environmental factors are thought to play a role in its development. In this chapter, we introduce the incidence and the prevalence of SLE as well as factors related to the development of SLE and discuss how to prevent the development of SLE.
Part of the book: Lupus