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Table 2 Comparison of the CTS Questionnaire and the pain scale in CTS patients

From: Comparative effectiveness of ultrasound and paraffin therapy in patients with carpal tunnel syndrome: a randomized trial

  Treatment group P valueb
Paraffin therapy US therapy
(n = 23) (n = 24)
Functional status score    0.04
  BT 1.7±0.6 1.8±0.8  
  AT 1.8±0.9 1.6±0.7  
  Difference (AT-BT) 0.1±0.9 -0.3±0.4  
  Effect size 0.17 0.38  
  P valuea 0.88 0.0017  
Symptom severity score    0.51
  BT 2.5±0.8 2.6±0.8  
  AT 1.9±0.7 2.1±0.8  
  Difference (AT-BT) -0.5±0.7 -0.5±0.7  
  Effect size 0.63 0.63  
  P valuea <0.0001 0.0046  
Pain scale    0.81
  BT 56.3±20.9 68.3±19.3  
  AT 50.7±22.7 54.2±22.6  
  Difference (AT-BT) -5.7±24.1 -14.2±27.3  
  Effect size 0.27 0.74  
  P valuea 0.29 0.01  
  1. Abbreviations: CTS carpal tunnel syndrome; US ultrasound; BT before treatment; AT after treatment.
  2. aPaired t test.
  3. bANCOVA comparison of differences in changes after treatment between groups after adjusting for age, gender and baseline values.
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