Admission patterns in a psychiatric intensive care unit in Ireland: a longitudinal follow-up.

Objective: This study aims to describe the course of admission and clinical characteristics of admissions to a psychiatric intensive care unit (PICU) in the Phoenix Care Centre (PCC), Dublin, Ireland.

Methods: This retrospective chart study was conducted at the PCC, Dublin, Ireland. The cohort included all admission episodes ( = 91 complete data) over a three-year study period between January 2014 and January 2017.

Results: The mean age of admitted cases was 37.1 (s.d. = 11.3; range 18-63). The mean length of stay (LOS) was 59.3 days (s.d. = 61.0; median 39.5 days). All patients were admitted under Mental Health Act legislation. Antipsychotic polypharmacy was used in 61% ( = 55) of the admissions. A diagnosis of acute psychotic disorder (B = -1.027, = 0.003, 95% CI: -1.691, -0.363) was associated with reduced LOS in PICU.

Conclusion: Our study describes the cohort of patients admitted as being predominantly male, younger-aged, single, having a diagnosis of schizophrenia and being legally detained. The primary indication for referral is risk of assault, which highlights the need for the intensive and secure treatment model that a PICU can provide.