A study of the effect of different types of anesthesia on the length of postoperative hospital stay yielded the following for cesarean patients: 

Group A was given an epidural MS. 

Group B was given an epidural. 

Group C was given a spinal. 

Group D was given general anesthesia. 

The data are presented in Table 6.24. In general, the general anesthetic is considered to be the most dangerous, the spinal somewhat less so, and the epidural even less, with the MS addition providing additional safety. Note that the data are in the form of distributions for each group.

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Table 6.24 Data for Exercise 7. Length of Stay Number of Patients Group A 3 4 6 14 Group B 4 18 5 2 Group C 4 10 Length of Stay Number of Patients 9 Group D 5645 1 8 12