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Characterization of metabolically unhealthy normal-weight individuals: Risk factors and their associations with type 2 diabetes.
Metabolism 64, 862-871 (2015)
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
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
WOS ID
WOS:000356402300002
Erfassungsdatum
2015-04-13