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Table 3 Comparison of the results of physical examinations and NCSs 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 = 43) (n = 37)
Monofilament test    0.95
  BT 29.5±3.7 30.1±4.1  
  AT 30.7±3.0 30.9±2.7  
  Difference (AT-BT) 1.2±3.5 1.2±3.3  
  P valuea 0.03 0.05  
Palmar pinch power (kg)    0.34
  BT 3.2±1.8 3.2±1.2  
  AT 3.6±1.5 3.6±1.1  
  Difference (AT-BT) 0.4±1.8 0.5±1.4  
  P valuea 0.44 0.01  
Distal motor latency of the median nerve (ms)    0.06
  BT 5.10±1.27 5.11±1.34  
  AT 4.98±1.51 5.08±1.30  
  Difference (AT-BT) -0.3±0.6 -0.03±0.6  
  P valuea 0.77 0.91  
Distal sensory latency of the median nerve (ms)    
  BT 3.7±0.9 3.6±0.8 0.83
  AT 3.4±0.8 3.6±1.4  
  Difference (AT-BT) -0.2±0.9 0.03±1.1  
  P valuea 0.11 0.91  
  1. Abbreviations: CTS carpal tunnel syndrome; NCS nerve conduction study; US ultrasound; BT before treatment; AT after treatment.
  2. aPaired t test (generalized estimating equation).
  3. bComparison of differences in changes after treatment between groups after adjusting for age, gender and baseline values (generalized estimating equation).