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. 2022 Oct 3;10:e14157. doi: 10.7717/peerj.14157

Table 2. Mean and standard deviation of the assessments.

Category First visit Second visit p value
Sample size 35 34 N/A
Height (cm) 161.65 (4.63) 162.18 (4.63) 0.00a,**
Weight (kg) 58.13 (6.65) 58.13 (6.21) 0.93a
Postoperative day 39.31 (7.66) 119.50 (16.86) 0.00a,**
History of chemotherapy (yes/no) 18/17 20/14 0.69b
History of radiation therapy (yes/no) 6/29 11/23 0.13b
History of tamoxifen intake (yes/no) 11/24 17/17 0.15b
Presence of edematous arm (yes/no) 5/30 6/28 1.00b
ROM limitation of elevation (yes/no) 22/13 9/25 0.00b,**
ROM limitation of external rotation (yes/no) 5/30 5/29 1.00b
LRJT reaction time (s)
Hand 1.92 (0.40) 1.95 (0.45) 0.77a
Back 1.61 (0.38) 1.58 (0.35) 0.27a
Foot 1.45 (0.36) 1.41 (0.33) 0.15a
LRJT accuracy (%)
Hand 78.71 (8.99) 79.82 (7.19) 0.47a
Back 87.57 (8.59) 88.68 (6.86) 0.27a
Foot 89.50 (7.32) 92.32 (5.02) 0.02a,*
Joint-reposition angle error (°) 3.37 (2.18) 2.06 (1.27) 0.00a,**
Pectoralis minor length index 9.81 (0.38) 10.28 (0.29) 0.00a,**
Present pain (yes/no) 27/8 20/14 0.15b
VAS-severe pain
(0–10, 0 means no pain)
4.31 (2.54) 4.18 (2.72) 0.96a
Quick DASH score
(0–100, 0 means no disability)
28.77 (15.70) 22.53 (16.35) 0.02a,*
Upper limb disability (yes/no) 27/8 18/16 0.04b
Exercise adherence score
(0–100, 0 means no exercise adherence)
58.09 (20.57) N/A

Notes:

a

Paired t-test (two-tailed).

b

McNemar test.

*

p-value < 0.05.

**

p-value < 0.01.

Results are expressed as frequencies and mean (SD). SD, standard deviation; ROM, range of motion; LRJT, left right judgement test; VAS, visual analogue scale; DASH, disabilities of the arm, shoulder, and hand Quick DASH scores over 16 are classified into the upper limb disability group.