The rate (per 100 patient discharges) of unplanned returns to a hospital within 30 days of discharge. It includes medical patients who were hospitalised for non-surgical treatment, and patients who had surgery while in hospital. Alternate Name: Hospital Readmission Rate Within 30 Days Of Leaving Hospital For Medical Or Surgical Treatment.

The number of episodes of care for medical and surgical patients with an urgent readmission within 30 days of previous discharge.

The number of episodes of care discharged between April 1 and March 1 of the fiscal year for surgical and medical patients.

Numerator: Delivery; Chemotherapy for neoplasm as most responsible diagnosis; Admission for mental illness; Admission for palliative care coded as most responsible diagnosis; and records with an invalid admission date. Denominator: Records with an invalid health card number/ invalid date of birth/invalid admission date or time/invalid discharge date or time/ admission category of still birth or cadaveric donor; Episodes with a discharge of death or self sign-out; Presence of at least one record in the episode with Mental Diseases and Disorder/palliative care coded as most responsible diagnosis/Pregnancy and Childbirth.

Age group, sex, acute care hospitalisation in previous six months, urgent admission, Charlson Comorbidity score group and selected Case Mix Group.

Discharge Abstract Database and National Ambulatory Care Reporting System. Discharge Abstract Database (DAD) captures administrative, clinical and demographic information on hospital discharges (including deaths, sign-outs and transfers). Data is received directly from acute care facilities or from their respective health/regional authority or ministry/department of health. National Ambulatory Care Reporting System (NACRS) is a national database designed to capture information on client visits to facility- and community-based ambulatory care. Data about visits is collected at the time of service in participating facilities.

Reported on CIHI website.

Tate K, Lee S, Rowe BH, Cummings GE, Holroyd-Leduc J, Reid RC, El-Bialy R, Bakal J, Estabrooks CA, Anderson C, & Cummings GG. (2022). Quality Indicators for Older Persons’ Transitions in Care: A Systematic Review and Delphi Process. Canadian Journal on Aging / La Revue canadienne du vieillissement 41(1), 40–54. doi.org/10.1017/S0714980820000446 taken from Health Quality Ontario. (2021). System performance: Indicator library. Retrieved 26 January 2021 from web.archive.org/web/20250113160658/https://www.hqontario.ca/System-Performance.

web.archive.org/web/20240625081242/http://indicatorlibrary.hqontario.ca/Indicator/Detailed/30-day-all-cause-readmission-medical-surgical-patients/EN