Fig. 2From: Indirect comparison between powered and manual circular staplers for left-sided colorectal anastomoses: clinical and economic outcomes in ChinaProbabilistic sensitivity analysis: boxplot of annual savings for 100 procedures. Q1: The lower quartile, or first quartile (Q1), is the value under which 25% of data points are found when they are arranged in increasing order. Q3: The upper quartile, or third quartile (Q3), is the value under which 75% of data points when they are arranged in increasing order. IQR interquartile rangeBack to article page