Psychotic-like experiences in community-dwelling young people in hong kong: Preliminary finding from the hong kong youth epidemiological study of mental health (HKYES)

Introduction Psychotic-like experiences (PLEs) are often referred to as psychotic experiences, such as hallucinations and delusions, in the absence of a psychotic disorder. PLEs as part of the continuum of psychosis suggested that healthy population can endorse PLEs without having significant distress or impairment which would warrant them a clinical diagnosis. While PLEs are usually associated with psychotic disorders, previous research has also shown the link between PLEs and many other mood symptoms. Objectives The present study aims to identify PLEs in community youths and explore the underlying risk and protective factors. Methods This is an ongoing study in which young people aged 15-24 were recruited from community through a random stratified sampling method. Sociodemographic, lifestyle, functioning, and other psychosocial factors were assessed in a face-to-face structured interview. In particular, PLEs were assessed using the Composite International Diagnostic Interview Screening Scales (CIDI-SC). Six domains of lifetime PLEs were measured, including auditory and visual hallucination, thought insertion/ withdrawal, delusion of control and reference, and persecutory delusions. Results To date, 746 participants were recruited and of these, 3.2% of them has endorsed lifetime PLEs. Results showed that significantly higher depressive, anxiety and stress scores were found in those who has PLEs (p<0.001), and additionally, these scores significantly predicted the presence of PLEs in regression models (p<0.001). Conclusions Our preliminary findings highlighted the inter-related phenomena between PLEs and mood symptoms. Further investigation is needed to examine the likelihood of PLEs in predicting psychosis over time.