1. International Diabetes Federation. IDF Diabetes Atlas. 8th ed. Brussels: International Diabetes Federation, 2017.
2. Forouzanfar M H, Afshin A, Alexander L T et al. Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. Lancet 2016; 388: 1659-1724.
3. Diabetes UK. New diabetes prevalence figures for England. 2016.Available at https://www.diabetes.org.uk/about_us/news/new-diabetes-prevalence-figures-for-england (accessed November 2017).
4. Office for National Statistics. Adult Dental Health Survey 2009. 2012. Available online at https://digital.nhs.uk/data-and-information/publications/statistical/adult-dental-health-survey/adult-dental-health-survey-2009-summary-report-and-thematic-series (accessed November 2017).
5. Casanova L, Hughes F J, Preshaw P M. Diabetes and periodontal disease: a two-way relationship. Br Dent J 2014; 217: 433-437.