Figure 2. Box-and-whisker plot showing the distribution of patients according to the number of endosonographic criteria of the Sahai et al. [7] classification system (score 2). Boxes represent the interquartile range (IQR: i.e., the middle 50% between the 2nd and 3rd quartiles); whiskers represent the minimum and the maximum value in the absence of outliers. We have computed one outlier (open bullet) in the non-alcoholic group. (Outliers were defined as values between 1.5 IQRs and 3 IQRs from the end of a box.