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Table 3 Subgroup analyses of typical and atypical CIDP

From: Quantitative grip force assessment of muscular weakness in chronic inflammatory demyelinating polyneuropathy

Parameter (Unit)

Typical CIDP

Atypical CIDP

HC

p-value

Post hoc*

No.**

Mean isometric grip force 500g_left hand (N)

9.34 (3.19)

12.20 (4.67)

9.1 (2.95)

0.0777

a) ns

b) ns

c) ns

15/17/27

Mean isometric grip force 500g_right hand (N)

9.40 (3.93)

11.70 (3.73)

10.38 (4.05)

0.1681

a) ns

b) ns

c) ns

16/16/28

Grip force variability 500g_ left hand (%)

6.94 (2.56)

6.99 (2.20)

5.40 (1.79)

0.0319

a) ns

b) ns

c) ns

15/17/27

Grip force variability 500g_ right hand (%)

7.16 (2.11)

5.56 (1.46)

5.4 (2.38)

0.0043

a) **

b) ns

c) ns

16/16/28

Orientation index

500g_ left hand (°/s)

13.24 (7.38)

9.54 (4.47)

5.31 (4.13)

<  0.0001

a) ***

b) **

c) Ns

13/17/26

Orientation index 500g_ right hand (°/s)

13.45 (6.37)

11.08 (8.82)

5.17 (3.36)

<  0.0001

a) ***

b) **

c) Ns

14/16/27

Position index 500g_ left hand (cm/s)

3.43 (1.35)

3.59 (1.65)

1.56 (0.83)

<  0.0001

a) ***

b) ***

a) Ns

10/19/26

Position index 500g_ right hand (cm/s)

3.20 (1.91)

3.68 (1.56)

1.84 (1.47)

<  0.0001

a) **

b) ***

a) Ns

10/19/27

  1. * a) Typical CIDP vs. HC, b) Atypical CIDP vs. HC, c) Typical CIDP vs. Atypical CIDP
  2. ** typical/atypical/HC