Figure 3: Box plots of predicted probabilities of large oesophageal varices by the model including 4 parameters: sex, spleen diameter, platelet count, and Child-Pugh score. The box represents the interquartile range; the top and the bottom of the box are, respectively, the 25th and 75th percentile. The line across the box is the median. The lower and upper values are indicated by the whiskers. Stars and circles represent the outliers’ and extremes’ values.