A Study on Efficacy of UGI Scopy in Cholelithiasis Patients before Laparoscopic Cholecystectomy

Table 5

Comparative analysis of pain score in group A and group B patients in pre-op and postoperative period.

Bivariate comparison of groups by Mann–Whitney U test
Variables	Pre-op		1st week		4th week		6th week
	Group A	Group B	Group A	Group B	Group A	Group B	Group A	Group B
Mean	2.28	2.48	0.27	1.20	0.14	0.18	0.02	0.04
Median	2.00	2.00	0.00	1.00	0.00	0.00	0.00	0.00
SD	0.670	0.776	0.444	0.705	0.352	0.381	0.142	0.203
IQR	1	1	1	1	0	0	0	0
Z value	1.937		10.755		0.751		1.024
value	0.05		0.0005		0.453^#		0.306^#

Highly significance at ; ^#no significance at .