Table 1.

Ultra High-Risk Criteria

Group 1: Attenuated psychotic symptoms

Presence of symptom scores of 3 on the Positive and Negative Syndrome Scale (PANSS) delusions scale, 2–3 on the PANSS hallucinations scale, 3–4 on PANSS suspiciousness or 3–4 on PANSS conceptual disorganization scale (frequency of symptoms ≥2 times per week for a period of at least a week and not longer than 5 years and to have occurred within the last year).

Group 2: Transient psychosis

Presence of symptoms scores of ≥4 on PANSS hallucinations scale, ≥4 on PANSS delusions scale, or ≥5 on PANSS conceptual disorganization scale (symptoms not sustained beyond a week and resolve without antipsychotic medication and have occurred within the last year).

Group 3: Trait plus state risk factors

Having a schizotypal personality disorder (as defined by DSM-IV) or a first-degree relative with a DSM-IV psychotic disorder and a significant decrease in functioning from premorbid level, resulting in a decrease of 30% on the Global Assessment of Functioning Scale, maintained for at least a month and not longer than 5 years. The decrease in functioning needed to have occurred within the past year.

Note: PANSS, Positive and Negative Syndromes of Schizophrenia Scale; DSM-IV, Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition.