1. Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
2. Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
3. Stroke Psychology Service, NHS Greater Glasgow and Clyde, Glasgow, UK
4. Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
5. Usher institute of population health sciences and informatics, University of Edinburgh, Edinburgh, UK
6. Norwich Medical School, University of East Anglia, England, UK