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Table 2 Demographic and clinical variables of patients with mild, moderate, and severe CTS

From: Combination of high-frequency ultrasound and virtual touch tissue imaging and quantification improve the diagnostic efficiency for mild carpal tunnel syndrome

Clinical classification Mild
(n = 36)
Moderate
(n = 46)
Severe
(n = 51)
(n = 1540)
P
Age [year, mean (SD)] 50.47 (15.04) 54.22 (12.51) 52.55 (11.63) 0.431
Gender (%)     0.394
 Male 26 (72.2) 33 (71.7) 42 (31.6)  
 Female 10 (27.8) 13 (28.3) 9 (17.6)  
Location (%)     0.390
 Left hand 17 (47.2) 23 (50.0) 31 (60.8)  
 Right hand 19 (52.8) 23 (50.0) 20 (39.2)  
CSAa [mm2, mean (SD)] 9.03 (1.95) 10.35 (2.25) 12.43 (3.07) <0.001
SWVb mean [m/s, mean (SD)] 3.92 (0.67) 4.38 (1.09) 4.64 (0.88) 0.002
  1. across-sectional area
  2. bshear wave velocity