1. Department of Economic Analysis and Finance, University of Castilla-La Mancha, Toledo, Spain
2. Department of Health Economics, Weber, Madrid Spain, University of Las Palmas de Gran Canaria, Las Palmas De Gran Canaria, Spain
3. Research Institute for Evaluation and Public Policies (IRAPP), Universitat Internacional de Catalunya (UIC), Barcelona, Spain
4. Servicio de Geriatría, Hospital Universitario de Getafe, Madrid, Spain
5. Foundation for Diabetes Research in Older People, Diabetes Frail Ltd, Luton, UK