Table 3.

Comparison of VAS scores before and after treatment [score, x̅±s]

Group	VAS
	Before treatment	After treatment	t	P
Study Group B (n=40)	6.30±1.18	1.85±1.27	24.881	< 0.001
Study Group A (n=40)	6.75±1.56	3.25±1.30	18.812	< 0.001
t	415.657	4.876
P	< 0.001	< 0.001

Note: VAS: Pain score.