Fig. 2

Neck circumference on a continuous scale and risk of incident nonalcoholic fatty liver diseases. Data were fit by a Cox regression model based on restricted cubic splines with 5 knots at the 5th, 35th, 50th, 65th, and 95th percentiles. The solid line represents the hazard ratio and the gray area represents the 95% confidence interval. Model was adjusted for age, smoking status, physical activity, educational attainment, BMI, waist circumference, HOMA-IR, CRP, adiponectin, fasting plasma glucose, post-loading plasma glucose, systolic blood pressure, diastolic blood pressure, lipid profiles, and liver enzymes