>>4594319He's actually right
The United States, Colombia, the Netherlands and Ukraine tended to have higher prevalence estimates across most classes of disorder, while Nigeria, Shanghai and Italy were consistently low, and prevalence was lower in Asian countries in general. Cases of disorder were rated as mild (prevalence of 1.8–9.7%), moderate (prevalence of 0.5–9.4%) and serious (prevalence of 0.4–7.7%).[6]
Previous widely cited large-scale surveys in the US were the Epidemiological Catchment Area (ECA) survey and subsequent National Comorbidity Survey (NCS).[11] The NCS was replicated and updated between 2000 and 2003 and indicated that, of those groups of disorders assessed, nearly half of Americans (46.4%) reported meeting criteria at some point in their life for either a DSM-IV anxiety disorder (28.8%), mood disorder (20.8%), impulse-control disorder (24.8%) or substance use disorders (14.6%). Half of all lifetime cases had started by age 14 and three quarters by age 24.[12]
In the prior 12-month period only, around a quarter (26.2%) met criteria for any disorder—anxiety disorders 18.1%; mood disorders 9.5%; impulse control disorders 8.9%; and substance use disorders 3.8%. A substantial minority (23%) met criteria for more than two disorders. 22.3% of cases were classed as serious, 37.3% as moderate and 40.4% as mild.[13][14]
Europe was rated at 27% using the same study
