Inflow/Outflow Ratio

Identifying Attributes

Care Settings
Hospital Care
Country
Canada
Publishing Organisation
Canadian Institute for Health Information (CIHI)
Type of Quality Indicator
Process
IOM Quality Dimension
Efficiency
Domain
Discharges

Defining Attributes

Definition

This indicator is a ratio, calculated as the number of separations (discharges and deaths) from acute care/same-day surgery facilities within a given region divided by the number of acute care/same-day surgery separations generated by residents of that region.

Numerator

Number of separations (discharges and deaths) from acute care/same-day surgery facilities within a given region (including non-residents) for all cases and for a given procedure.

Denominator

Number of separations (discharges and deaths) from acute care/same-day surgery facilities generated by residents of the region for a given procedure.

Exclusions
Use of Risk Adjustment
No
Risk Adjustments

None

Stratifications

By reporting level: Region.

Collection and Reporting Attributes

Type of Data Collection
Standardised clinical data
Data Collection Methods

Discharge Abstract Database (DAD), Hospital Morbidity Database (HMDB), National Ambulatory Care Reporting System (NACRS)

Frequency of Data Collection
Annually
Frequency of Data Collection in Days
365
Reporting Methods
Reporting Frequency
Annually
Reporting Frequency in Days
365
Indicator Has Recommended Targets
No

Source and Reference Attributes

Link to Measurement Tools
Quality Indicator Confirmed to be Part of a Program Used to Monitor Quality and Safety of Care Among Older People at a Population-Level between 2012-2022
Yes
Assessed by the Australian Consortium for Aged Care Collaborators as Generally Containing Good Properties (Importance and Scientific Acceptability)
No
Australian Consortium for Aged Care Endorsed
No
Identified by PHARMA-Care Project
No
Upload Date
02 December 2025