Fig. 2From: Cholecystectomy versus central obesity or insulin resistance in relation to the risk of nonalcoholic fatty liver disease: the third US National Health and Nutrition Examination SurveyCombined effect of gallstone disease and metabolic syndrome (MetS) or combined effect of gallstone disease and insulin resistance on the risk of non-alcoholic fatty liver disease (NAFLD). Combined effect of gallstone disease and MetS on the odds of NAFLD (a). Combined effect of gallstone disease and insulin resistance on the odds of NAFLD (b). Odds ratios (95% confidence intervals) of NAFLD were adjusted for age, sex, race ethnicity, smoking and drinking status, education level, hemoglobin A1c, and total cholesterolBack to article page