Much research on psychosis has focused on early detection and the development of effective interventions. However, the effectiveness of any intervention depends on the willingness of the patient to engage with an intervention in a sustained manner. Disengagement from treatment by patients with serious mental illness is a major concern of mental health services.

This study aims to examine the prevalence of disengagement in a longitudinal cohort of first episode psychosis (FEP) patients.

Retrospective naturalistic 2years follow-up study of FEP patients aged 18 to 35 admitted into the department of psychiatry of the Beatriz Angelo's hospital from 2012 to 2014. Data on socio-demographics, clinical characteristics, appointments and medication adherence and readmissions were collected.

Between 2012 and 2014 were admitted 56 patients with a FEP into the department of psychiatry of the Beatriz Angelo's hospital. The great majority of the patients (67.9%) disengaged from the treatment, both appointments and medication. Of those, 13.2% did not attend any appointment, 26.3% attended between one and three appointments and 60.5% attended at least 3 appointments before disengaged. About 23% were readmitted between the 2years follow up period, 15.4% were readmitted more than once.

The evidence reviewed indicates that approximately 30% of individuals with FEP disengage from services. Continuity of care is of particular importance with FEP, given evidence suggesting that long-term care can improve symptoms and functioning and reduces relapse risk.