Use of Multiple Metabolic and Genetic Markers to Improve the Prediction of Type 2 Diabetes: the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam study
- Matthias B. Schulze, DrPH (matthias.schulze{at}wzw.tum.de)1,2,
- Cornelia Weikert, MD2,3,
- Tobias Pischon, MD2,
- Manuela M. Bergmann, PhD2,
- Hadi Al-Hasani, PhD4,
- Erwin Schleicher, PhD5,
- Andreas Fritsche, MD5,
- Hans-Ulrich Häring, MD5,
- Heiner Boeing, PhD2 and
- Hans-Georg Joost, MD4
- 1 Public Health Nutrition Unit, Technische Universität München, Freising, Germany
- 2 Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- 3 Institute for Social Medicine, Epidemiology, and Health Economics, Charité University Medicine Berlin, Germany
- 4 Department of Pharmacology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- 5 Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, University of Tübingen, Tübingen, Germany
Abstract
Objective: We investigated whether metabolic biomarkers and single nucleotide polymorphisms (SNPs) improve diabetes prediction beyond age, anthropometry and lifestyle risk factors.
Research Design and Methods: A case-cohort study within a prospective study was designed. We randomly selected a subcohort (n=2,500) from 26,444 participants of whom 1,962 were diabetes-free at baseline. Of the 801 incident type 2 diabetes cases identified in the cohort during 7 years of follow-up 579 remained for analyses after exclusions. Prediction models were compared by receiver operator characteristics (ROC) and integrated discrimination improvement.
Results: Case-control discrimination by the lifestyle characteristics (ROC-AUC: 0.8465) improved with plasma glucose (ROC-AUC: 0.8672, p<0.001) and HbA1c (ROC-AUC: 0.8859, p<0.001). ROC-AUC further improved with HDL-cholesterol, triglycerides, γ-glutamyltransferase, and alanine-aminotransferase (0.9000, p=0.002). Twenty SNPs didn't improve discrimination beyond these characteristics (p=0.69).
Conclusion: Metabolic markers, but not genotyping for 20 diabetogenic SNPs, improve discrimination of incident type 2 diabetes beyond lifestyle risk factors.
Footnotes
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- Received February 3, 2009.
- Accepted July 12, 2009.
- Copyright © American Diabetes Association











