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Table 2 Parameters of ultrasonography among the groups

From: The diagnostic value of ultrasonography in carpal tunnel syndrome: a comparison between diabetic and non-diabetic patients

  C-hands CTS-hands DM-CTS-hands DM-hands  
  (n=40) (n=81) (n=59) (n=21) pvalue
Median nerve      
  CSA_D (mm2) 12.0±2.9 15.4±3.8 15.4±4.8 13.8±4.4 0.002α
  Flattening ratio_D 3.7±0.9 3.6±1.0 3.5±0.7 3.7±1.2 0.39
  CSA_W (mm2) 11.8±2.0 15.3±3.7 15.5±4.8 12.2±3.4 <0.001β
  Flattening ratio_W 3.0±0.6 3.4±0.8 3.0±0.7 3.3±0.8 0.10
  1. Abbreviations: CSA cross section area, D at outlet of carpal tunnel, W at the wrist crease.
  2. P value was calculated by one-way ANOVA with post-hoc comparison:
  3. α = CTS-hands vs. C-hands, p = 0.007; DM-CTS-hands vs. C-hands, p = 0.012.
  4. β = CTS-hands vs. C-hands, p < 0.001; DM-CTS-hands vs. C-hands, p < 0.001; CTS-hands vs. DM-hands, p = 0.019; DM-CTS-hands vs. DM-hands, p = 0.014.