PMID- 32893192 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20240329 IS - 2044-6055 (Electronic) IS - 2044-6055 (Linking) VI - 10 IP - 9 DP - 2020 Sep 6 TI - Epidemiology and determinants of non-diabetic hyperglycaemia and its conversion to type 2 diabetes mellitus, 2000-2015: cohort population study using UK electronic health records. PG - e040201 LID - 10.1136/bmjopen-2020-040201 [doi] LID - e040201 AB - OBJECTIVES: To study the characteristics of UK individuals identified with non-diabetic hyperglycaemia (NDH) and their conversion rates to type 2 diabetes mellitus (T2DM) from 2000 to 2015, using the Clinical Practice Research Datalink. DESIGN: Cohort study. SETTINGS: UK primary Care Practices. PARTICIPANTS: Electronic health records identified 14 272 participants with NDH, from 2000 to 2015. PRIMARY AND SECONDARY OUTCOME MEASURES: Baseline characteristics and conversion trends from NDH to T2DM were explored. Cox proportional hazards models evaluated predictors of conversion. RESULTS: Crude conversion was 4% within 6 months of NDH diagnosis, 7% annually, 13% within 2 years, 17% within 3 years and 23% within 5 years. However, 1-year conversion fell from 8% in 2000 to 4% in 2014. Individuals aged 45-54 were at the highest risk of developing T2DM (HR 1.20, 95% CI 1.15 to 1.25- compared with those aged 18-44), and the risk reduced with older age. A body mass index (BMI) above 30 kg/m(2) was strongly associated with conversion (HR 2.02, 95% CI 1.92 to 2.13-compared with those with a normal BMI). Depression (HR 1.10, 95% CI 1.07 to 1.13), smoking (HR 1.07, 95% CI 1.03 to 1.11-compared with non-smokers) or residing in the most deprived areas (HR 1.17, 95% CI 1.11 to 1.24-compared with residents of the most affluent areas) was modestly associated with conversion. CONCLUSION: Although the rate of conversion from NDH to T2DM fell between 2010 and 2015, this is likely due to changes over time in the cut-off points for defining NDH, and more people of lower diabetes risk being diagnosed with NDH over time. People aged 45-54, smokers, depressed, with high BMI and more deprived are at increased risk of conversion to T2DM. CI - (c) Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY. Published by BMJ. FAU - Ravindrarajah, Rathi AU - Ravindrarajah R AUID- ORCID: 0000-0003-4875-4912 AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK rathi.ravindrarajah@manchester.ac.uk. FAU - Reeves, David AU - Reeves D AUID- ORCID: 0000-0001-6377-6859 AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Howarth, Elizabeth AU - Howarth E AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Meacock, Rachel AU - Meacock R AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Soiland-Reyes, Claudia AU - Soiland-Reyes C AD - Research & Innovation, Northern Care Alliance NHS Group, Summerfield House, M5 5AP, Salford, Salford, UK. FAU - Cotterill, Sarah AU - Cotterill S AD - Centre for Biostatistics, University of Manchester, Manchester, UK. FAU - Whittaker, William AU - Whittaker W AUID- ORCID: 0000-0003-2530-0360 AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Heller, Simon AU - Heller S AD - Academic Unit of Diabetes, Endo and Metab, Unversity of Sheffield, Sheffield, UK. FAU - Sutton, Matt AU - Sutton M AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Bower, Peter AU - Bower P AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. FAU - Kontopantelis, Evangelos AU - Kontopantelis E AUID- ORCID: 0000-0001-6450-5815 AD - Division of Population Health,Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK. LA - eng GR - 16/48/07/DH_/Department of Health/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200906 PL - England TA - BMJ Open JT - BMJ open JID - 101552874 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Cohort Studies MH - *Diabetes Mellitus, Type 2/epidemiology MH - Electronic Health Records MH - Humans MH - *Hyperglycemia/epidemiology MH - Incidence MH - Middle Aged MH - Risk Factors MH - United Kingdom/epidemiology MH - Young Adult PMC - PMC7484863 OTO - NOTNLM OT - diabetes & endocrinology OT - epidemiology OT - primary care COIS- Competing interests: National Institute for Health Research (Health Services and Delivery Research, 16/48/07 - Evaluating the NHS Diabetes Prevention Programme (NHS DPP): the DIPLOMA research programme (Diabetes Prevention - Long Term Multimethod Assessment)). Funded the time and facilities of RR. SH contributes for consultancy for Eli Lilly, NovoNordisk, Takeda, Sanofi Aventis, Zealand Pharma, UN-EEG and is also part of the speakers panel for NovoNordisk. EDAT- 2020/09/08 06:00 MHDA- 2021/05/15 06:00 PMCR- 2020/09/06 CRDT- 2020/09/07 05:59 PHST- 2020/09/07 05:59 [entrez] PHST- 2020/09/08 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/09/06 00:00 [pmc-release] AID - bmjopen-2020-040201 [pii] AID - 10.1136/bmjopen-2020-040201 [doi] PST - epublish SO - BMJ Open. 2020 Sep 6;10(9):e040201. doi: 10.1136/bmjopen-2020-040201.