M27. FUNCTIONAL OUTCOME OF CHILDREN AND ADOLESCENTS WITH ATTENUATED PSYCHOTIC SYMPTOMS: RESULTS FROM A LONGITUDINAL STUDY

Abstract Background Assessing longitudinal functional outcomes, besides the risk of transition, seems important in underage population given the concerns about the use of at-risk criteria in this age range. Indeed, it has been highlighted that attenuated psychotic symptoms appear to be more common and transient than in adults and could, more often, represent normative experiences (Bartels-Velthuis et al. 2016; Schimmelmann et al. 2013). Thus, in this longitudinal cohort study, we aimed to evaluate socio-occupational functioning at follow-ups in children and adolescents with attenuated psychotic symptoms (APS) and to investigate potential clinical predictors of the functional outcome. Methods Help-seeking adolescents (aged 12–18 years) consecutively admitted to Child and Adolescent Neuropsychiatric inpatient and outpatient units of the IRCCS Mondino Foundation (Pavia, Italy) were recruited. The Comprehensive Assessment of At-Risk Mental State (CAARMS) was used in order to evaluate the presence of attenuated psychotic symptoms. The final sample consisted of 31adolescents suffering from early onset psychosis (EOP), 110 APS and 102 adolescents with psychiatric disorders other than APS and EOP (non-APS). At baseline patients underwent an extensive clinical and, in a subset, also neuropsychological assessment using standardized semi-structured interviews and instruments. All APS patients recruited until March 2019 were followed up for a median period of 33 months (range 4–81 months) and baseline measures were repeated (every 12 months). The level of functioning was defined through the Social and Occupational Functioning Assessment Scale (SOFAS). Results At 12 months and last visit follow-ups APS patients overall continued to display a significant impairment in socio-occupational functioning that persisted over time (baseline SOFAS average score 47.3±9.6, average 12-months follow-up 51.7±13.7, average last-visit follow-up SOFAS 51.6±11.5). Also APS adolescents that did not develop psychosis continued to display a significant impairment in socio-occupational functioning that persisted over time. Besides conversion status (p=0.04), a higher SOFAS (p=0.0026) and better social functioning (p=0.016) and total IQ (p=0.02) at baseline and not having a baseline diagnosis of anxiety disorders (generalized anxiety disorder, p=0.005 and panic disorder, p=0.003) significantly predicted socio-occupational functioning at follow-up. Discussion In line with previous literature in adults, besides the risk of transitioning, at follow-ups APS adolescents overall continued to display a significant impairment in socio-occupational functioning that persisted over time. These data further show that APS adolescents are truly in need of care and underscore the need, also and especially in adolescents, not to focus only on transition risk, as APS adolescents appear to be both at risk of conversion to psychosis but also of functional disability persistent over time. Thus, preventive interventions should not only target emerging psychosis, but also improving APS social and global functional impairment that already at baseline seems to be linked with such a disabling outcome. In APS children and adolescents a multidimensional treatment plan including careful monitoring not only for a potential progression but also psychological interventions aiming at improving functioning is strongly recommended