Table 3.
Risk factors associated with major complications in univariate analysis
| Risk factors | Numbers | Odds ratio (95%CI) |
| Age | 312 | 1.07 (1.03, 1.10; P < 0.001) |
| ASA: ≥ P3 vs < P3 | 137, 173 | 1.9 (1.1, 3.0; P = 0.01) |
| DLCO mmol/min/kPa | 153 | 0.76 (0.62, 0.92; P = 0.006) |
| Epidural vs paravertebral | 187,90 | 1.8 (1.0,3.2; P = 0.05) |
| FEV1 L | 309 | 0.67 (0.45, 1.00; P = 0.05) |
| FEV1 % predicted | 308 | 1.00 (0.98,1.01; P = 0.7) |
| ppo FEV1 % predicted | 306 | 0.99 (0.96,1.01; P = 0.4) |
| DLCO % predicted | 154 | 0.99 (0.97,1.01; P = 0.13) |
| ppo DLCO % predicted | 162 | 0.97 (0.93,1.01; P = 0.11) |
| Preop. O2 saturation on air: ≤ 94 vs > 94% | 26, 235 | 2.3 (1.0, 5.2; P = 0.04) |
| One lung ventilation: (hours) | 294 | 1.09 (0.99, 1.20; P = 0.1) |
| Plateau pressure during one lung ventilation: ≥ 25 vs < 25 cmH2O | 254 | 1.5 (0.8, 2.7; P = 0.2) |
| Right vs left operations | 110, 199 | 1.5 (0.9, 2.5; P = 0.08) |
| Fluid positive balance | 272,19 | 0.9 (0.3, 2.5; P = 0.9) |
| Planned vs Converted | 208,102 | 1.3 (0.8,2.2; P = 0.3) |
| Gender: Male vs Female | 209,101 | 1.2 (0.7,2.0; P = 0.4) |
| Stump closure: staples vs sutures | 249,36 | 1.1 (0.5,2.3; P = 0.9) |
| Smoking history: yes vs no | 286,25 | 1.2 (0.5,3.0; P = 0.7) |
| Neo-adjuvant therapy: yes vs no | 33,270 | 0.5 (0.2,1.1; P = 0.1) |