Table 7:
Mean OIDP before and after surgery.
Number
Minimum
Maximum
Mean
Standard Deviation
Wilcoxon Test Result
OIDP before surgery
73
0.00
60.00
11.1333
12.96469
Z = 5.96
P
˂0.001
OIDP after surgery
73
0.00
16.73
1.7733
3.73942