Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12913-016-1814-7/MediaObjects/12913_2016_1814_Fig4_HTML.gif)
Association between hospital length of stay and level of severity of illness determined by APR-DRG (*p > 0.05 between two groups)
Association between hospital length of stay and level of severity of illness determined by APR-DRG (*p > 0.05 between two groups)