Figure 2From: National trends in hospital length of stay for acute myocardial infarction in ChinaYear-trend Whisker plot of length of stay. Diamond inside the box: mean; line inside the box: median; bottom and top edges of the box: interquartile range (IQR); bottom and top edges of the whiskers: 1.5*IQR; points beyond the whiskers: outliers.Back to article page