Table 1 Clinical Staging Framework for Mental Health Disorders [4]
From: Youth at-risk for serious mental illness: methods of the PROCAN study
Stage | Definition |
|---|---|
0 | No clinical symptoms • Increased risk of disorder (family history) |
1a | Distress Disorder • No attenuated psychotic symptoms • Non-specific symptoms of anxiety or depression • Mild to moderate severity of symptoms • May include subjective/objective evidence of mild cognitive deficits. • Evidence of only recent or mild impacts of illness on social, educational or occupational function |
1b | Attenuated Syndromes • Distress disorder plus at least one moderate-severe attenuated psychotic symptom (unusual thoughts, suspiciousness, perceptual abnormalities, grandiosity, disorganization) • Specific symptoms of anxiety or depression, brief hypomania or brief psychotic phenomena • May include subjective/objective evidence of at least moderate cognitive change • Moderate to severe impact of illness on social, education or employment functioning |
2 | Discrete Disorders • Discrete episodes of psychosis, mania or severe depression • Full threshold disorder with moderate-severe symptoms and persistence over time • Illness is having a major impact on social, educational or occupational functioning |
3a-3c 4 | Stages not Relevant for this Project Incomplete remission to multiple relapses Unremitting course of illness |