Abstract
ABSTRACTBackground: We aimed to estimate population-based trends in the prevalence of coexisting type 2 diabetes (T2D) and suspected nonalcoholic fatty liver disease (NAFLD) and pioglitazone use among U.S. adults.Research design and methods: We conducted a cross-sectional analysis of the National Health and Nutrition Examination Survey from 2003 to 2016. We included people aged ≥18 years who had HbA1C >6.4%, fasting plasma glucose >125 mg/dL, or were told they had diabetes by a doctor. Suspected NAFLD was defined using a hepatic steatosis index of >36. Prevalence was estimated for each 2-year survey cycle. Trends were analyzed using logistic regression, accounting for the complex survey design.Results: Total sample size was 40,323 U.S. adults, of which 5690 had T2D. Age-adjusted prevalence of T2D with NAFLD increased from 5.6% in 2003–2004 to 6.8% in 2015–2016 (p-value <0.001). Pioglitazone use peaked at 20% in 2005–2006 and then declined to 4.1% in 2013–2014. Patients with suspected NAFLD were not more likely to receive pioglitazone; 3.8% of patients received the drug in 2015–2016.Conclusions: The prevalence of T2D with suspected NALFD increased among U.S. adults, but pioglitazone use decreased significantly over 2003–2016. Our study suggested a missed opportunity to prevent a future epidemic of cirrhosis due to NAFLD in patients with T2D.
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