This page outlines the sources and definitions used throughout the stroke statistics dashboards. Where possible, consistent definitions and the year with the most up-to-date data for all of the nations have been used.
Stroke definition: ICD-10 codes I60-64, G45 by national providers. Scotland is I61, I63 and I64 only by NHS board of residence and data are for hospital stays
Timeframe: 2019/20 England, Wales, NI; 2020 Scotland
*Hospital Inpatient System, Hospital Information Branch, Information & Analysis Directorate, Dept. Of Health, NI (not publicly available)
Stroke definition: Patient with a stroke or TIA on a GP practice register
Timeframe: England (2019/20); Scotland (2021), Wales (2018/19); Northern Ireland (2020/21)
Geographies: Nation; England (2020 CCGs); Scotland (Health Board); Wales (Health Board); Northern Ireland (Health and Social Care Trust)