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Table 1 Patients characteristics, duration of surgery, median level of sensory block, and incidence of shivering in the two groups

From: Effect of electroacupuncture in postanesthetic shivering during regional anesthesia: a randomized controlled trial

  Group A Group P P- value
Number of patients 40 40  
Age (yr) 58.60 (11.92) 56.93 (14.62) 0.58
Gender (F/M) 7/33 3/37 0.18
Weight (kg) 67.81 (12.15) 69.01 (13.52) 0.68
Height (cm) 164.12 (6.76) 165.12 (6.67) 0.51
ASA (I/II) 19/21 13/27 0.17
Duration of surgery (min) 77.08 (40.72) 76.63 (39.47) 0.96
Median level of sensory block (dermatome) T9 (T4-T12) T9 (T4-L1)
  1. Data are presented as mean (SD) or median (range). The median level of sensory block was similar in both groups.