Table 1 Demographic characteristics of patients undergoing thoracolumbar spinal surgery
|  | 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 |