Abstract
Objective
To develop a risk scoring model for screening for undiagnosed type 2 diabetes in Chinese population.
Methods
A total of 5348 subjects from two districts of Jinan City, Shandong Province, China were enrolled. Group A (2985) included individuals from east of the city and Group B (2363) from west of the city. Screening questionnaires and a standard oral glucose tolerance test (OGTT) were completed by all subjects. Based on the stepwise logistic regression analysis of Group A, variables were selected to establish the risk scoring model. The validity and effectiveness of this model were evaluated in Group B.
Results
Based on stepwise logistic regression analysis performed with data of Group A, variables including age, body mass index (BMI), waist-to-hip ratio (WHR), systolic pressure, diastolic pressure, heart rate, family history of diabetes, and history of high glucose were accepted into the risk scoring model. The risk for having diabetes increased along with aggregate scores. When Youden index was closest to 1, the optimal cutoff value was set up at 51. At this point, the diabetes risk scoring model could identify diabetes patients with a sensitivity of 83.3% and a specificity of 66.5%, making the positive predictive value 12.83% and negative predictive value 98.53%. We compared our model with the Finnish and Danish model and concluded that our model has superior validity in Chinese population.
Conclusions
Our diabetes risk scoring model has satisfactory sensitivity and specificity for identifying undiagnosed diabetes in our population, which might be a simple and practical tool suitable for massive diabetes screening.
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Project (No. 963000052) supported by the Science and Technology Department of Shandong Province, China
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Dong, Jj., Lou, Nj., Zhao, Jj. et al. Evaluation of a risk factor scoring model in screening for undiagnosed diabetes in China population. J. Zhejiang Univ. Sci. B 12, 846–852 (2011). https://doi.org/10.1631/jzus.B1000390
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DOI: https://doi.org/10.1631/jzus.B1000390