Table 2 Comparison of electrophysiological parameters between healthy individuals and CMI patients.

Average latency (ms) (R)

10.40 (9.48, 10.90)

11.70 (10.20, 12.80)

− 3.788

Average latency (ms) (L)

10.40 (9.15, 10.90)

11.85 (10.58, 13.18)

− 4.257

Average amplitude (Uv) (R)

353.00 (291.00, 382.50)

375.00 (321.00, 436.75)

− 1.507

Average amplitude (uv) (L)

364.50 (284.00, 395.75)

370.00 (302.50, 458.00)

− 0.76

Polyphasic wave ratio % (R)

0.00 (0.00, 10.05)

8.35 (0.00, 12.93)

− 2.092

Polyphasic wave ratio % (L)

7.10 (0.00, 10.65)

6.10 (0.00, 12.33)

− 0.505

Polyphasic-adjusted average latency (R)

10.35 ± 1.19

11.44 ± 1.59

− 3.175

Polyphasic-adjusted average latency (L)

10.50 (9.50, 10.90)

11.7 (10.50, 12.98)

− 3.848

Amplitude mv (R)

1.65 (1.30, 1.80)

1.50 (1.20, 1.80)

− 0.841

Amplitude mv (L)

1.56 ± 0.35

1.45 ± 0.43

1.163

Recruitment phase (R)

17.078

 0

26 (86.70)

15 (37.50)

 1

4 (13.30)

25 (62.50)

Recruitment phase (L)

28.078

 0

28 (93.30)

12 (30.00)

 1

2 (6.70)

28 (70.00)

Spontaneous abnormal potentials (R)

10

 0

27 (90.00)

22 (55.00)

 1

3 (10.00)

18 (45.00)

Spontaneous abnormal potentials (L)

10

 0

27 (90.00)

22 (55.00)

 1

3 (10.00)

18 (45.00)