[1] Univ Glasgow, Inst Cardiovasc & Med Sci, Glasgow G12 8TA, Scotland
[2] Univ Leicester, Diabet Res Ctr, Leicester, England
[3] Univ Edinburgh, Usher Inst, Coll Med & Vet Med, Edinburgh, Scotland
[4] NHS Digital, Leeds, England
[5] Diabet UK, London, England
[6] Imperial Coll London, Sch Publ Hlth, London, England
[7] NHS England & NHS Improvement, London, England
[8] Imperial Coll Healthcare NHS Trust, St Marys Hosp, Dept Diabet & Endocrinol, London, England
[9] Imperial Coll London, Div Metab Digest & Reprod, London, England
[10] Imperial Coll London, Sch Publ Hlth, London W12 7TA, England