The South London Stroke Register: Improving the Lives of Stroke Survivors With Data

Inclusion Criteria: 1. Confirmed stroke (WHO ICD-11 clinical definition)- cerebral ischaemic stroke, primary intracerebral haemorrhage, subarachnoid haemorrhage and stroke not known if ischaemic or haemorrhagic. Formerly defined Transient Ischaemic Attacks with CT/MRI evidence of cerebrovascular disease are classified as stroke under this definition. 2. Living in the study area at the time of the first stroke. 3. First stroke since 1st January 1995 for enrolled participants. First stroke since 1st April 2022 for updated definition. Exclusion Criteria: 1. First ever stroke is before 1st January 1995 2. Patients' main residence at the time of first stroke is outside the study area. 3. Focal neurological signs resolved within 24 hours and no CT/MRI scan reports evidence of cerebrovascular disease (i.e. transient ischaemic attack) 4. CT/MRI scans positive for cerebrovascular disease but absence of related focal neurological deficits (asymptomatic cerebrovascular disease) 5. brain lesion other than stroke causes the acute symptoms such as cerebral tumour or metastases