Table 3 Comparison of demographic and clinical data between patients who underwent surgery under general anaesthesia in 2004 and 2014
Variable | 2004 (n = 818) | 2014 (n = 818) | p-value |
|---|---|---|---|
Age | 50.1 ± 15.1 | 49.4 ± 16.7 | 0.320 |
Sex | 372: 446 | 374: 444 | 0.921 |
Weight (kg) | 62.4 ± 10.8 | 62.8 ± 12.3 | 0.420 |
Height (cm) | 163.3 ± 8.3 | 163.2 ± 8.3 | 0.820 |
ASA class (1 or 2 vs. 3 or 4) | 645: 173 | 649: 169 | 0.808 |
BSA (m2) | 1.68 ± 0.17 | 1.68 ± 0.19 | 0.718 |
Lapa op (%) | 83 (10.1%) | 132 (16.2%) | < 0.001 |
Open abd. (%) | 224 (27.4%) | 70 (8.6%) | |
Head & neck (%) | 228 (27.9%) | 350 (42.8%) | |
Orthopaedic (%) | 58 (7.1%) | 127 (15.5%) | |
Urology (%) | 44 (5.4%) | 46 (5.6%) | |
Spine op (%) | 69 (8.4%) | 17 (2.1%) | |
Other op (%) | 112 (13.7%) | 76 (9.2%) | |
Prone position (%) | 60 (7.3%) | 14 (1.7%) | < 0.001 |
VT (mL/kgIBW) | 9.9 ± 1.4 | 8.4 ± 1.0 | < 0.001 |
VT (mL/kg of ABW) | 9.1 ± 1.3 | 7.7 ± 1.1 | 0.001 |
VT (mL) | 559.6 ± 80.9 | 475.6 ± 59.5 | < 0.001 |
PEEP, N (%) | 1 (0.0%) | 381 (46.6%) | < 0.001 |
Lung-protective ventilation, N (%) | 0 (0.0%) | 280 (34.2%) | < 0.001 |