Diabetes Care Publish Ahead of Print published online ahead of print February 2, 2007 DOI: 10.2337/dc06-2247
Prevalence of nonalcoholic fatty liver disease and its association with cardiovascular disease among type 2 diabetic patients
Giovanni Targher, MD1,
Lorenzo Bertolini, MD1,
Roberto Padovani, MD1,
Stefano Rodella, MD2,
Roberto Tessari, MD1,
Luciano Zenari, MD1,
Christopher Day, MD3 and
Guido Arcaro, MD1
1Department of Internal Medicine, "Sacro Cuore" Hospital, Negrar (VR), Italy
2Department of Radiology, "Sacro Cuore" Hospital, Negrar (VR), Italy
3Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, England
targher{at}sacrocuore.it
ABSTRACT
OBJECTIVE - To determine the prevalence of nonalcoholic fatty liver disease (NAFLD) in type 2 diabetic population, and to compare the prevalence of cardiovascular disease (CVD) and its risk factors between people with and without NAFLD.
RESEARCH DESIGN AND METHODS - The entire sample of type 2 diabetic outpatients (n=2,839) who regularly attended our clinic was screened. Main outcome measures were NAFLD (by patient history and liver ultrasound) and manifest CVD (by patient history, review of patient records, electrocardiogram and echo-Doppler of carotid and lower limb arteries).
RESULTS - The unadjusted prevalence of NAFLD was 69.5% among participants, and NAFLD was the most common cause (81.5%) of hepatic steatosis on ultrasound. The prevalence of NAFLD increased with age (65.4% among participants aged 40-59 years and 74.6% among those aged 60 years; p<0.001) and the age-adjusted prevalence of NAFLD was 71.1% in men and 68% in women. NAFLD patients had remarkably (p<0.001) higher age, and sex-adjusted prevalences of coronary (26.6 vs. 18.3%), cerebrovascular (20.0 vs. 13.3%) and peripheral (15.4 vs. 10.0%) vascular disease than their counterparts without NAFLD. In logistic regression analysis, NAFLD was associated with prevalent CVD independent of classical risk factors, glycaemic control, medications and the metabolic syndrome features.
CONCLUSIONS - NAFLD is extremely common in people with type 2 diabetes and is associated with higher prevalence of CVD. Follow-up studies are needed to determine whether NAFLD predicts the development and progression of CVD.

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Copyright © 2007 by the American Diabetes Association.
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