1. NEQOS, North East Quality Observatory Service, 1st Floor, Ridley House, Henry Street, Gosforth, Newcastle upon Tyne NE3 1DQ, UK
2. School of Economics, Nottingham University, Nottingham NG7 2RD, UK
3. NIHR Applied Research Collaborative North East and North Cumbria, Cumbria, Northumberland and Tyne and Wear NHS Foundation Trust, The Clocktower Building, St Nicholas Hospital, Gosforth, Newcastle NE3 3XT, UK
4. Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Sir James Spence Building, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK
5. AHSN NENC, Academic Health Science Network for North East North Cumbria, Room 2.13, Biomedical Research Building, Campus for Ageing and Vitality, Nuns’ Moor Road, Newcastle upon Tyne NE4 5PL, UK