Stroke
Main inclusion criteria
Includes both ischaemic stroke (caused by blood clots) and haemorrhagic stroke (caused by cerebral/intercranial haemorrhage).
Advice on health categories
When coding research involving circulation or blood flow, only studies investigating blood flow to the brain should be coded as Stroke.
While general blood circulation and cardiovascular disease research should be coded as Cardiovascular, research involving blood flow to brain should be coded as Stroke. Therefore haemorrhagic stroke will generally be coded as 100% Stroke unless there is a clear pre-existing condition, in which case the guidance on sequelae should be followed:
e.g. Research on stroke resulting from brain haemorrhage should be coded as 100% Stroke.
e.g. Research on stroke as the direct result of pre-existing circulatory disorder should be coded as 50% Cardiovascular and 50% Stroke.
While general studies of clotting and thromboses should be coded as Blood, research involving blood flow to brain should be coded as Stroke. Therefore ischaemic stroke will generally be coded as 100% Stroke unless there is a clear pre-existing condition, in which case the guidance on sequelae should be followed:
e.g. Research on stroke resulting from thrombosis should be coded as 100% Stroke.
e.g. Research on stroke as the direct result of pre-existing clotting disorder should be coded as 50% Blood and 50% Stroke.
Similarly, research on symptoms of stroke on stroke survivors should also be coded as Stroke. However, the specific symptoms (e.g. behavioural changes, mobility issues, further circulatory problems) and interventions used to treat them may be applicable to other health categories too. Use the guidance on case studies and/or sequelae to assess whether alternative or additional coding is required.
Official terminology
Full name of category |
Short name | Unique ID |
Stroke | Stroke |
HRCS_HC_19STR |