Every quarter the unit issues reports to the HSE on mental health Performance Indicator (PI) data recorded on the National Psychiatric In-patient Reporting System (NPIRS). These reports on activity in HSE operated acute in-patient units/hospitals are based on a a PI Template developed by the HSE. Information is provided by mental health catchment area and is aggregated by each of the four HSE administrative areas. The reports present data on admissions to and discharges from these units/hospitals in each quarter.