This review focuses on ways in which epidemiological research can inform mental health service development and clinical practice. Data from epidemiological studies can provide cross-sectional and secular estimates of the prevalence of psychopathology to support rational service development. Epidemiological surveys have difficulties in finding…

Background: In most countries, the majority of children with attention deficit/hyperactivity disorder (ADHD) are undiagnosed. In the United Kingdom, a major barrier to accessing specialist services is the limited recognition of disorders by general practitioners. However, it is unclear whether there are also barriers at other stages of the…