Table 2.

Comparison of VAS scores (x̅ ± sd, score)

Group	Before surgery	1 day after surgery	3 days after surgery	7 days after surgery
Research group (n=39)	7.31±1.39	5.84±1.10#	3.98±0.99#	2.10±0.74#
Control group (n=39)	7.22±1.30	6.44±1.35#	4.50±1.02#	2.55±0.88#
t	0.295	2.152	2.285	2.444
P	0.769	0.035	0.025	0.017

Note: Compared with before surgery;

^#P<0.05.

VAS: Visual Analogue Scale.