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Table 2 Comparison of pre-treatment and post-treatment values of outcome variables in each group

From: Comparison of single-dose radial extracorporeal shock wave and local corticosteroid injection for treatment of carpal tunnel syndrome including mid-term efficacy: a prospective randomized controlled trial

  

rESWTa (n = 13)

LCsIb (n = 12)

Outcome variable

Follow-up sessions

Mean +/− SD

p value

Mean +/− SD

p value

Visual analogue scale

Baseline

2.4 +/−  2.5

 

2.6 +/−  2.0

 

Week 1

1.3 +/−  2.0

0.18

1.6 +/−  1.7

0.08

Week 4

1.3 +/−  1.9

0.15

1.4 +/−  1.5

0.08

Week 12

0.65 +/− 1.2

0.022*

1.9 +/− 2.7

0.52

Week 24

0.35 +/− 0.81c

0.0075*

1.7 +/− 2.1

0.19

Symptom severity score

Baseline

21 +/− 6.4

 

22 +/− 5.1

 

Week 1

19 +/− 7.4

0.33

17 +/− 4.5

0.0047*

Week 4

17 +/−  4.3

0.031*

17 +/−  5.1

0.011*

Week 12

15 +/− 4.5

0.0082*

18 +/− 5.5

0.13

Week 24

13 +/− 2.9c

0.0059*

19 +/− 7.9

0.20

Functional score

Baseline

14 +/− 3.2

 

12 +/− 4.1

 

Week 1

13 +/− 4.2

0.27

11 +/− 3.2

0.31

Week 4

13 +/−  3.5

0.12

11 +/−  3.3

0.39

Week 12

11 +/− 3.0

0.0065*

10 +/− 3.4

0.19

Week 24

11 +/− 2.2c

0.0073*

13 +/− 7.0

0.65

Boston questionnaire score

Baseline

35 +/− 8.5

 

34 +/− 8.5

 

Week 1

32 +/− 10

0.28

28 +/− 7.0

0.037*

Week 4

30 +/− 7.1

0.032*

28 +/− 8.0

0.05

Week 12

26 +/− 6.8

0.0040*

29 +/− 8.2

0.13

Week 24

24 +/− 4.7c

0.0037*

32 +/− 14

0.47

Peak sensory distal latency

Baseline

4.5 +/− 0.72

 

3.7 +/− 1.3

 

Week 12

4.1 +/− 0.74d

0.0047*

3.6 +/− 1.3

0.026*

SNAPe amplitude

Baseline

17 +/− 6.9

 

18 +/− 11

 

Week 12

18 +/− 6.5d

0.66

21 +/− 12

0.28

Motor distal latency

Baseline

4.5 +/− 0.35

 

4.7 +/−  0.90

 

Week 12

4.2 +/− 0.42d

0.084

4.4 +/− 0.75

0.06

CMAPf amplitude

Baseline

6.9 +/− 1.5

 

6.0 +/− 0.61

 

Week 12

6.9 +/− 1.6d

0.91

6.5 +/− 1.2

0.20

  1. *p < 0.05
  2. arESWT = Radial extracorporeal shockwave therapy
  3. bLCsI = Local corticosteroid injection
  4. cn = 11
  5. dn = 10
  6. eSNAP = Sensory nerve action potential
  7. fCMAP = Compound muscle action potential