Diabetes risk calculator

Calculate in mg/dL

Glucose on Unselected Admissions and Risk of Diabetes (GUARD): Type 2 Diabetes Risk Calculator

This website is designed for health professionals.

If you would like to know more about it, and why it might be useful for health professionals to use it, please click here: Description of the tool

This tool was developed by members of the Scottish Diabetes Research Network.

Please note that this tool was developed and validated within Scotland, a country with a relatively small non-white population. It has not been validated in a non-white population within Scotland, or in white populations outside Scotland.

Age in years
Admission glucose mg/dL
3-year risk (95% confidence interval), %

For those working in a UK setting, a risk of 5% in this calculator broadly corresponds to the "high-risk" category assigned on the basis of the risk assessment tools endorsed in the National Institute for Health and Care Excellence (NICE) guidance on the risk assessment and identification of patients with type 2 diabetes (www.nice.org.uk/guidance/PH38/).

An A4-sized (210 x 297mm, or 8.267 x 11.692 inches) colour-coded wall-chart presenting risks for men and women for selected ages and glucose levels can be downloaded here.

Risk Table Preview

David A. McAllister, Katherine A. Hughes, Nazir Lone, Nicholas L. Mills, Naveed Sattar, John McKnight, Sarah H. Wild (2014). Stress Hyperglycaemia in Hospitalised Patients and Their 3-Year Risk of Diabetes: A Scottish Retrospective Cohort Study. PLoS Med 11(8): e1001708. doi:10.1371/journal.pmed.1001708

This work was funded by The Chief Scientist Office (CSO) of the Scottish Government (Grant number CZH-4-836).