From: Safety and efficacy of patient controlled epidural analgesia versus conventional epidural analgesia in lower limb orthopedic surgeries: a prospective randomized study
Likert scale
Score
GroupPCEA
GroupIBEA
Total
Chi-square value
P value
Undecided
3
0
20
36.00
0.000
Somewhat satisfied
4
15
10
25
Very much satisfied
5
Mean ± S.D
4.50 ± 0.51
3.33 ± 0.48