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Table 1 Demographic characteristics of patients undergoing thoracolumbar spinal surgery

From: Effect of intratracheal dexmedetomidine combined with ropivacaine on postoperative sore throat: a prospective randomised double-blinded controlled trial

  Group S
(n = 50)
Group D
(n = 50)
Group R
(n = 50)
Group DR
(n = 50)
Age (years) 50.6 ± 9.5 49.3 ± 10.4 49.0 ± 9.7 50.4 ± 10.4
Weight (kg) 64.8 ± 11.0 63.0 ± 8.9 65.7 ± 10.1 65.8 ± 9.6
Height (cm) 164.2 ± 8.6 164.2 ± 7.2 165.0 ± 6.6 164.4 ± 7.7
BMI (kg/m2) 23.9 ± 2.6 23.3 ± 2.3 24.1 ± 2.9 24.3 ± 2.3
Sex (female/male) 27/23 29/21 28/22 30/20
ASA physical status (Ι/Π) 13/37 14/36 16/34 12/38
Wilson risk sum score 1.60 ± 0.67 1.56 ± 0.68 1.48 ± 0.54 1.52 ± 0.68
Duration of surgery (min) 149.3 ± 35.4 157.1 ± 38.1 147.8 ± 33.4 157.8 ± 32.4
Duration of anaesthesia (min) 178.4 ± 35.2 186.8 ± 38.1 178.8 ± 34.7 187.4 ± 31.1
Retention time of tracheal catheter 187.7 ± 34.2 194.0 ± 37.0 184.8 ± 33.7 193.6 ± 30.5
Extubation time (min) 9.6 ± 5.0 9.2 ± 5.3 8.9 ± 4.6 8.6 ± 5.2
  1. Data are presented as the mean ± SD or the number of patients. Group S Saline, D Dexmedetomidine, R Ropivacaine, DR Ropivacaine combined with dexmedetomidine