1. Department of Public Health and Primary Care, Leiden University Medical Center, The Netherlands
2. Department of Gerontology and Geriatrics, Leiden University Medical Center, The Netherlands
3. Department of Medical Statistics, Leiden University Medical Center, The Netherlands
4. Netherlands Consortium for Healthy Ageing, Leiden, The Netherlands
5. Institute for Evidence-Based Medicine in Old Age, Leiden, the Netherlands
6. Robertson Centre for Biostatistics, University of Glasgow, UK
7. British Heart Foundation, Glasgow Cardiovascular Research Centre, University of Glasgow, UK
8. Department of Cardiology, Leiden University Medical Center, The Netherlands
9. Academic Section of Geriatric Medicine, University of Glasgow-Faculty of Medicine, Glasgow Royal Infirmary, UK