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Eckel, N.* ; Mühlenbruch, K.* ; Meidtner, K.* ; Boeing, H.* ; Stefan, N. ; Schulze, M.B.*

Characterization of metabolically unhealthy normal-weight individuals: Risk factors and their associations with type 2 diabetes.

Metabolism 64, 862-871 (2015)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
OBJECTIVE: A proportion of type 2 diabetes cases arise from normal-weight individuals who can therefore be considered to be "metabolically unhealthy normal-weight" (MUH-NW). It remains unclear which factors account for this access risk. Our aims were to identify risk factors for type 2 diabetes in normal-weight individuals and to compare the strengths of their associations with type 2 diabetes to that observed in overweight and obese participants. METHODS: A case-cohort, including 2027 sub-cohort participants and 706 incident type 2 cases, was designed within the population-based European Prospective Investigation into Cancer and Nutrition Potsdam study. Adjusted means and relative frequencies of anthropometric, lifestyle and biochemical risk factors were calculated in groups stratified by BMI and incident diabetes status. Cox regressions were applied to evaluate associations between these variables and diabetes risk stratified by BMI category. RESULTS: MUH-NW individuals were characterized by known diabetes risk factors, e.g. they were significantly more likely to be male, former smokers, hypertensive, and less physically active compared to normal-weight individuals without incident diabetes. Higher waist circumference (women: 75.5 vs. 73.1cm; men: 88.0 vs. 85.1cm), higher HbA1c (6.1 vs. 5.3%), higher triglycerides (1.47 vs. 1.11mmol/l), and higher levels of high sensitive C-reactive protein (0.81 vs. 0.51mg/l) as well as lower levels of HDL-cholesterol (1.28 vs. 1.49mmol/l) and adiponectin (6.32 vs. 8.25μg/ml) characterized this phenotype. Stronger associations with diabetes among normal-weight participants compared to overweight and obese (p for interaction<0.05) were observed for height, waist circumference, former smoking, and hypertension. CONCLUSIONS: Normal-weight individuals who develop diabetes have higher levels of diabetes risk factors, however, frequently still among the normal range. Still, hypertension, elevated HbA1c and lifestyle risk factors might be useful indicators of risk.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Anthropometry ; Biomarkers ; Metabolically Unhealthy Normal-weight ; Risk Factors ; Type 2 Diabetes; Body-mass Index; Case-cohort; Waist Circumference; Epic-potsdam; Life-style; Obesity; Smoking; Metaanalysis; Mellitus; Men
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 0026-0495
e-ISSN 1532-8600
Quellenangaben Volume: 64, Issue: 8, Pages: 862-871 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Philadelphia
Reviewing status Peer reviewed
POF-Topic(s) 90000 - German Center for Diabetes Research
Research field(s) Helmholtz Diabetes Center
PSP Element(s) G-502400-002
PubMed ID 25861921
Erfassungsdatum 2015-04-13