Fig. 2
Restricted cubic spline model of the odds ratios of non-alcoholic fatty liver diseases (NAFLD) with intakes of (a) red meat (Pnonlinearity = 0.63), (b) processed meat (Pnonlinearity = 0.24), (c) poultry (Pnonlinearity = 0.69) and (d) fish (Pnonlinearity = 0.55). Gray area, 95% confidence interval. Each model was adjusted for age, gender, body mass index (BMI), smoking status, tea intake status, weekly hours of physical activity and the presence of hypertension, dyslipidemia and diabetes