Comparison of the effectiveness of two different concentrations of ropivacaine for intrapleural analgesia in reducing stimulatory pain caused by chest tubes after uniportal video-assisted thoracoscopic surgery: a randomised controlled study

Table 3 Comparison of rest and cough VAS scores of postoperative incision pain among the three groups

Evaluation status	Group	6 h	12 h	24 h	48 h
Rest VAS	N	1 (1,1)	2 (1,3)	1 (1,1.75)	1 (1,1)
	L	1 (1,1.75)	1 (1,2)	1 (1,1.75)	1 (0,1)
	M	1 (1,1)	1 (0,1)^**	1 (1,1)	1 (1,1)
	P-value	0.840	0.002	0.621	0.950
Cough VAS	N	4 (4,5)	4 (3,4)	3 (2,3.75)	2 (1,2)
	L	3 (3,4)^*	2.5 (2,4)^**	2 (2,3)^**	1 (1,2)^*
	M	3 (2,3.75)^***	2 (2,3)^**	2 (2,2)^***	1 (0,1.75)^***
	P-value	<0.001	<0.001	<0.001	<0.001

Data are presented as median (Q1, Q3). ^*,**,***represents P<0.05, 0.01, 0.001 in the comparison between this group and group N. (n = 30)
Group L: 0.25% ropivacaine, group M: 0.50% ropivacaine

ISSN: 1471-2253