Gao et al reported a score for identifying a Chinese adult at risk for undiagnosed diabetes. The authors are from the University of Helsinki, National Institute for Health and Welfare (Helsinki), Qingdao Municipal Centre for Disease Control and Prevention, and Hong Kong Institute for Diabetes and Obesity.
Patient selection: adult from 20 to 74 years of age
Parameters:
(1) waist in cm
(2) sex
(3) age in years
(4) diabetes in family members (parents and/or sibling)
Parameters
Findings
Points
waist
male and <= 76 cm
1
male and 77 to 86 cm
4
male and 87 to 96 cm
8
male and >= 97 cm
12
female and <= 66 cm
1
female and 67 to 76 cm
3
female and 77 to 86 cm
6
female and >= 87 cm
9
age in years
<= 35 years
1
36 to 45 years
3
46 to 55 years
6
56 to 64.9 years
9
>= 65 years
12
family history
no
1
yes
8
where:
• The table shows waist circumference in "chi" which is reported to be about 33 cm.
total score =
= SUM(points for the parameters)
Interpretation:
• minimum score: 3
• maximum score: 32
• A score >= 14 is associated with increased risk for undiagnosed diabetes.
Performance:
• At the cutoff the sensitivity was 0.84 and the specificity 0.40.
• The area under the ROC curve is 0.64 for males and 0.68 for females.
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