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Table 2 Clinical characteristics of total sample

From: Assessment of carpal tunnel syndrome via ultrasonography among hospital workers: a screening study

  Total examined nerves
(number = 274)
Number Percent
Median nerve CSA by US (mm2) (mean ± SD)/median (9.08 ± 2.5)/9
BCTQ (mean ± SD)/median (19.86 ± 3.42)/19
BCTQ Normal (≤ 19) 236 85.8
Abnormal (> 19) 39 14.2
Median nerve CSA by US Normal (≤ 10 mm2) 215 78.5
Abnormal (> 10 mm2) Mild (> 10 mm22) 47 79.7
Moderate (> 13 mm22) 7 11.9
Severe (> 15 mm22) 5 8.5
Total 59 21.5
  1. CSA cross sectional area, US ultrasound, BCTQ Boston carpal tunnel questionnaire