Table 5.

The VAS scores in all groups (points, n=20).

	Upon admission	6-month follow-up	12-month follow-up
Group A	8.76±1.23	6.05±1.21*	4.66±1.22*
Group B	8.63±1.24#	4.79±1.11#*	3.31±1.41#*
Group C	8.72±1.42#	3.34±1.14#*	2.17±1.24#*
Group D	8.58±1.31#	5.37±1.21#*	3.93±1.16#*

Compared with Group A,

^#P<0.05; compared with that upon admission,

^*P<0.05.