Table 2. Intergroup comparison of the numeric rating scale (NRS), nerve signal intensity, and nerve thickness in different groups.

The total range of the NRS scale=0-10. Intergroup analysis using repeated measures ANOVA test

*Insignificant

**Significant

ANOVA, analysis of variance; au, arbitrary unit

Parameters	Groups	Mean	Standard deviation	P-value
NRS at baseline	Group I	5.40	1.14	0.692*
	Group II	5.60	1.14
	Group III	5.30	1.08
NRS after one month	Group I	3.72	1.16	0.001**
	Group II	4.07	1.17
	Group III	2.80	0.76
NRS after three months	Group I	1.90	0.79	0.001**
	Group II	2.35	0.69
	Group III	1.50	0.51
Signal intensity at baseline (au)	Group I	3.60	0.40	0.408*
	Group II	3.46	0.60
	Group III	3.35	0.70
Signal intensity after three months (au)	Group I	2.32	0.29	0.000**
	Group II	2.16	0.47
	Group III	1.66	0.55
Nerve thickness at baseline (mm2)	Group I	3.25	0.71	0.630*
	Group II	3.06	0.80
	Group III	3.26	0.69
Nerve thickness after three months (mm2)	Group I	2.91	0.70	0.351*
	Group II	2.72	0.76
	Group III	2.58	0.66