The entire field of psychiatric epidemiology has a systematic bias that leads it to misleadingly report what are highly inflated rates of psychiatric disorder. Psychiatric symptoms in mild form are widely distributed in the general population- from time to time, most everyone will have some depression or anxiety. But symptoms alone do not define psychiatric disorder. As indicated in the previous blog, the symptoms must also cause clinically significant distress or impairment. Epidemiologic studies all routinely ignore this crucial requirement. They mistakenly diagnose as psychiatric disorder symptoms that are mild, transient, and lacking in clinical significance.
Allen Frances: Epidemiology Mis-Counts