Risk Scores for Type 2 Diabetes Can Be Applied in Some Populations but Not All

• Published in: Diabetes care Vol. 29; no. 2; pp. 410 - 414
• Main Authors: Glümer, Charlotte, Vistisen, Dorte, Borch-Johnsen, Knut, Colagiuri, Stephen
• Format: Journal Article
• Language: English
• Published: Alexandria, VA American Diabetes Association 01.02.2006
• Subjects: Biological and medical sciences; Body Mass Index; Cross-Sectional Studies; Diabetes; Diabetes Mellitus, Type 2 - diagnosis; Diabetes Mellitus, Type 2 - ethnology; Diabetes. Impaired glucose tolerance; Endocrine pancreas. Apud cells (diseases); Endocrinopathies; Etiopathogenesis. Screening. Investigations. Target tissue resistance; Female; Genetic aspects; Genotype & phenotype; Humans; Male; Mass Screening; Medical sciences; Middle Aged; Multiracial people; Predictive Value of Tests; Risk Assessment; Risk factors; ROC Curve; Type 2 diabetes; White people; Whites; Endocrinopathy; Type 2 diabetes; Human; Ethnic origin; Acute; Metabolic diseases; Diagnosis; Risk analysis
• ISSN: 0149-5992; 1935-5548
• DOI: 10.2337/diacare.29.02.06.dc05-0945

Risk Scores for Type 2 Diabetes Can Be Applied in Some Populations but Not All Charlotte Glümer , MD, PHD 1 , Dorte Vistisen , MSC, PHD 1 , Knut Borch-Johnsen , DMSC 1 , Stephen Colagiuri , MD 2 and on behalf of the DETECT-2 Collaboration 1 Steno Diabetes Center, Gentofte, Denmark 2 Department of Endocrinology and Diabetes, Prince of Wales Hospital, Sydney, Australia Address correspondence and reprint requests to Charlotte Glümer, MD, PhD, Steno Diabetes Center, Niels Steensens Vej 2, 2820 Gentofte, Denmark. E-mail: chgl{at}steno.dk Abstract OBJECTIVE —Risk scores based on phenotypic characteristics to identify individuals at high risk of having undiagnosed diabetes have been developed in Caucasian populations. The impact of known risk factors on having undiagnosed type 2 diabetes differs between populations from different ethnic origin, and risk scores developed in Caucasians may not be applicable to other ethnic groups. This study evaluated the performance of one risk score in nine populations of diverse ethnic origin. RESEARCH DESIGN AND METHODS —Data provided by centers from around the world to the DETECT-2 project were used. The database includes population-based surveys with information on at least 500 people without known diabetes having a 75-g oral glucose tolerance test. To date, 52 centers have contributed data on 190,000 individuals from 34 countries. In this analysis, nine cross-sectional studies were selected representing diverse ethnic and regional backgrounds. The risk score assessed uses information on age, sex, blood pressure treatment, and BMI. RESULTS —This analysis included 29,758 individuals; 1,805 individuals had undiagnosed diabetes. The performance of the risk score varied widely, with sensitivity, specificity, and percentage needing further testing ranging between 12 and 57%, 72 and 93%, and 2 and 25%, respectively, with the worse performance in non-Caucasian populations. This variation in performance was related to differences in the association between prevalence of undiagnosed diabetes and components of the risk score. CONCLUSIONS —A typical risk score developed in Caucasian populations cannot be applied to other populations of diverse ethnic origins. AUC, area under the receiver-operator characteristic curve NHANES III, Third National Health and Nutrition Examination Survey ROC, receiver-operator characteristic RPM, Rotterdam Predictive Model Footnotes C.G. and K.B.-J. hold stock in and have received research funding from Novo Nordisk. A table elsewhere in this issue shows conventional and Système International (SI) units and conversion factors for many substances. Accepted October 28, 2005. Received May 24, 2005. DIABETES CARE