Youth Experiences and Health Study

This study aims to identify unusual experiences and psychiatric symptoms that indicate a heightened risk for severe mental disorders - especially psychoses. It is important to develop reliable questionnaire methods that are cost-effective in first-stage screening, leading to in-depth assessments and targeted care. However, existing psychosis-risk questionnaires are limited in content, intended for adults, and have been insufficiently tested for actual predictive value. Therefore we will collect a new, large dataset from an unselected group of adolescents entering psychiatric care in three major urban areas of Finland. Comprehensive national health care registers will be used to assess how well the selected experiences and symptoms predict the participants' mental health over the following few years.

NCT Number	NCT03332966
Lead Sponsor	Finnish Institute for Health and Welfare Collaborators: Hospital District of Helsinki and Uusimaa, Pirkanmaa Hospital District, Northern Ostrobothnia Hospital District
Conditions	Psychotic Disorders, Psychiatric Hospitalization, Prodromal Symptoms, Cannabis Use, Trauma, Psychological
Enrollment	1,000 participants
Start Date	2019-12-01
Primary Completion	2024-12-31 (estimated)
Study Completion	2024-12-31 (estimated)
Updated on ClinicalTrials.gov	2024-09-25