Early intervention in psychiatry · 2026
Psychotic Vulnerability in Adolescents With Obsessive-Compulsive Disorder: First Longitudinal Evidence From a Prospective Pilot Study.
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Borrelli Davide Fausto, Gambolò Luca, Di Donna Anna, Marchesi Carlo, Tonna Matteo
Аннотация
AIM: Childhood-onset Obsessive-Compulsive Disorder (OCD) has been associated with an increased vulnerability to psychosis, yet no prospective studies have examined this risk in paediatric populations.
METHODS: In this pilot prospective study, 59 adolescents with a primary diagnosis of OCD were assessed at baseline for psychotic vulnerability, measured through Cognitive-Perceptual basic symptoms (COPER) and the high-risk criterion Cognitive Disturbances (COGDIS), as well as for OCD severity and psychosocial functioning. The number of subjects who developed a first episode of psychosis (FEP) during the 18-month follow-up period was evaluated. Logistic regression and moderation analyses were performed.
RESULTS: During the follow-up period, 18.6% of participants presented with a FEP. These patients were older and displayed poorer psychosocial functioning compared with those who did not develop a FEP. Logistic regression identified higher COPER symptoms and lower psychosocial functioning as the only significant predictors of FEP. Although moderation effects were not statistically significant, exploratory simple slopes suggested that both COPER and COGDIS symptoms were more strongly associated with psychosis onset in adolescents with lower psychosocial functioning.
CONCLUSIONS: This study highlights a notable rate of progression to psychosis among adolescents with OCD over an 18-month period. Despite methodological limitations, our findings offer preliminary evidence that COPER symptoms and impaired psychosocial functioning are key risk factors in adolescents with OCD for progression to psychosis.
METHODS: In this pilot prospective study, 59 adolescents with a primary diagnosis of OCD were assessed at baseline for psychotic vulnerability, measured through Cognitive-Perceptual basic symptoms (COPER) and the high-risk criterion Cognitive Disturbances (COGDIS), as well as for OCD severity and psychosocial functioning. The number of subjects who developed a first episode of psychosis (FEP) during the 18-month follow-up period was evaluated. Logistic regression and moderation analyses were performed.
RESULTS: During the follow-up period, 18.6% of participants presented with a FEP. These patients were older and displayed poorer psychosocial functioning compared with those who did not develop a FEP. Logistic regression identified higher COPER symptoms and lower psychosocial functioning as the only significant predictors of FEP. Although moderation effects were not statistically significant, exploratory simple slopes suggested that both COPER and COGDIS symptoms were more strongly associated with psychosis onset in adolescents with lower psychosocial functioning.
CONCLUSIONS: This study highlights a notable rate of progression to psychosis among adolescents with OCD over an 18-month period. Despite methodological limitations, our findings offer preliminary evidence that COPER symptoms and impaired psychosocial functioning are key risk factors in adolescents with OCD for progression to psychosis.