<unk>  is often estimated to affect approximately 3-6% of adults and 5% of children and adolescents. Although estimates have varied to suggest a<unk>  prevalence of 3% in children and 10.8% in adolescents. When<unk>  manifests in children and adolescents, it typically begins around 8 to 9 years of age. Estimates regarding prevalence of<unk>  or lifetime risk (i.e., lifetime morbid risk (LMR)) for<unk>  vary depending upon which criteria are used for diagnosing<unk>  (e.g., DSM-5 vs ICD-10) although estimates do not vary widely between diagnostic criteria. In general, ICD-10 is more inclusive than DSM-5, so estimates regarding prevalence and lifetime risk tend to be greater using ICD-10. In regard to prevalence, in a given year, about two (2%) percent of adults in the United States and Europe have been suggested to suffer<unk> . However, the risk of developing<unk>  at any point in life has been estimated at 9.0%. Although it is possible to experience a single episode of<unk>  during one's life, most people who experience<unk>  experience it repeatedly over the course of their lives as a chronic or ongoing condition.<unk>  is diagnosed twice as frequently in women as in men and is more often diagnosed in those who are separated, divorced, unemployed, widowed or have low levels of education, and among those with low socioeconomic status. African Americans have higher odds of having<unk>  and the disorder often manifests itself in different patterns. It has been suggested that greater prevalence of<unk>  in women may be because women are more likely than men to live in poverty, are more frequently the subject of discrimination, and be sexually and physically abused more often than men. In regard to the first incidence of<unk>  in an individual's life course, a first manifestation of<unk>  usually occurs between the late teenage years and the early twenties with the median age of onset being approximately 31 and mean age of onset being 32.7. However,<unk>  can begin or reoccur at any point in life. Indeed,<unk>  is common in the elderly population. United States United States: Approximately 3.1 percent of people age 18 and over in a given year (9.5 million). UK 5.9 percent of adults were affected by<unk>  in 2019. Other *Australia: 3 percent of adults *Canada: 2.5 percent *Italy: 2.9 percent *Taiwan: 0.4 percent
Generalized anxiety disorder
Hypochondriasis
Separation anxiety disorder
Social anxiety disorder
Blood phobia
Medication phobia
Anxiety disorder
Somatization disorder