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Table 1 Patient characteristics

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

  CIDP all Typical CIDP Atypical CIDP HC
N total 33 16 17 28
sex, female (%) 12 (36,4) 10 (62,5) 2 (11,76) P = 0.004 14 (50)
age (years), mean (SD) 64,18 (9,94) 62,50 (11,65) 65,75 (8,04) 59,54 (8,94)
median (range) 65 (44–82) 61 (44–82) 68 (52–80) 60 (37–77)
time since diagnosis, years, median (IQR) 5 (2–8) 7,5 (2.75–14.25) 3 (2–7) n.a.
CIDP disease activity status –stabile (%) 26 (85.8) 14 (87.5) 12 (70.6) n.a.
handedness, right handed (%) 31/32a (96.8) 16 (100) 16 (94) n.a.
INCAT ODSS, mean (SD) 3.4 (1.6) 4.4 (1.5) 2.4 (1.0) P = 0.0002 n.a.
- arms 1.4 (0.75) 2.4 (1.0) 1.4 (0,96) P = 0.003 n.a.
- legs 1.5 (0.9) 2 (1.0) 1.0 (0.001) n.a.
MRC, mean (SD) 71.5 (7.5) 68.9 (9.9) 73.0 (5.1) n.a.
treatment actually/ever (%)
- glucosteroids 7/24 (21/72.8) 5/13 (31/81) 2/11 (12/64) n.a.
- IVIg 19/33 (58/100) 10/16 (63/100) 9/17 (53/100) n.a.
- PE 0/8 (0/24.2) 0/4 (0/25) 0/4 (0/23) n.a.
- other 5/7 (15/21) 3/5 (19/31) 2/2 (12/12) n.a.
  1. a missing data of one patient regarding handedness in CIDP group
  2. Abbreviations: INCAT Inflammatory Neuropathy Cause and Treatment disability score, MRC Medical Research Counsil, SD Standard deviation, IQR Interquartile range, IVIg Intravenous immunoglobulin, PE Plasma exchange