Fig. 2

Box-plots comparing systemic immune-inflammation index (SII) among alive and dead patients at different times. a 30 days; b 1 year; c last time of follow-up. Blue box plots represent alive patients, whereas yellow box plots represent dead patients. The horizontal lines within the boxes represent the median; the boxes represent the interquartile range; the ends of the whiskers represent the minimum and maximum values, excluding the outliers; dots above and below the box plots represent outliers. Differences between groups were analyzed by Wilcoxon rank-sum test