About the Indian Diabetes Risk Score
IDRS, 2005
Primary source
Mohan V, Deepa R, Deepa M, Somannavar S, Datta M. A simplified Indian Diabetes Risk Score for screening for undiagnosed diabetic subjects. J Assoc Physicians India. 2005;53:759-63.
Who it was built on
Developed from the Chennai Urban Rural Epidemiology Study (CURES): 2,350 adults aged 20 and over from a representative sample of Chennai, screened for diabetes with a 2-hour glucose test.
Source and attribution
- Developed by
- Madras Diabetes Research Foundation and Dr. Mohan's Diabetes Specialities Centre, Chennai
- Published
- Journal of the Association of Physicians of India, vol. 53, September 2005 (received 8 August 2005, accepted 20 August 2005)
- Rights
- The article is © JAPI 2005. This site reproduces the published scale for screening with attribution and does not display the scoring table.
The score is calculated exactly as published in the scale.
How well it works
In the original study, the high band identified 72.5% of people who had undiagnosed diabetes (sensitivity) and correctly cleared 60.1% of people who did not (specificity). Of those in the high band, 17% actually had diabetes; of those below it, 95.1% did not.
Limitations
The score is a screening tool, not a probability. It was built on urban adults in one city and validated on the same data. It screens for undiagnosed type 2 diabetes only; it cannot detect type 1 or gestational diabetes and does not apply to children. If you already have diabetes, this test is not for you.
Other sources used
Waist cut-offs of 90 cm for men and 80 cm for women are the Asia-Pacific thresholds for abdominal obesity, which are lower than the European ones.
WHO/IASO/IOTF. The Asia-Pacific perspective: redefining obesity and its treatment. Health Communications Australia, 2000.