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Wednesday, April 7, 2010

Indian Diabetes Risk Score developed by Madras Diabetes Research Foundation

CURES also looked at the development of a risk score for diabetes prediction and prevention. One simple way of screening a large population for type 2 diabetes is by development of a simple risk score based on data that can be routinely used at the primary care level. Indian Diabetes Risk Score [IDRS] was developed based on the phase 3 data from CURES. Using statistical analysis, we determined the risk factors, which best predicted diabetes. The IDRS is based on the answers to four simple questions and a simple measurement.
Particulars
Score
Age [years]< 35 [reference]
35 - 49
> 50
0
20
30
Abdominal obesity Waist <80 cm [female] , <90 [male] [reference]
Waist 80 – 89 cm [female], 90 – 99 cm [male]
Waist > 90 cm [female], > 100 cm [male]
0
10
20
Physical activityVigorous exercise or Strenuous work
Moderate exercise work / home
Mild exercise work / home
No exercise & Sedentary work / home
0
10
20
30
Family historyNo family history
Either parent
Both parents
0
10
20
Maximum score100
Source : Dr. V. Mohan, et al, J Assoc Physicians India, 2003
An IDRS value > 60 had the optimum sensitivity (72.5%) and specificity (60.1%) and accuracy of 61.3%, for prediction of diabetes in an individual. This simplified Indian Diabetes Risk Score is useful for identifying undiagnosed diabetic subjects in India and could make screening programmes more cost effective as it can reduce the cost by 50% if replaced for screening programmes with blood sugar estimations.

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