Table 5.
Multivariate analyses of risk factors for postoperative pulmonary complications [Significant differences (p < 0.05)].
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| Unadjusted OR (95% CI) | p-value | Adjusted OR (95% CI) | p-value | |
| Age > 65 years | 0.71 (0.45–1.14) | 0.197 | – | – |
| Sex, man | 2.65 (1.55–4.51) | < 0.001 | 1.90 (0.93–3.89) | 0.077 |
| Underweight (BMI < 18.5 kg/m2) | 6.12 (2.51–14.93) | < 0.001 | 4.57 (1.76–11.83) | 0.002 |
| Ever smoker | 2.43 (1.51–3.91) | < 0.001 | 1.44 (0.76–2.72) | 0.259 |
| Recent respiratory infection (within 1 month) | 2.48 (0.69–8.90) | 0.155 | – | – |
| Preoperative hypoxemia (SpO2 < 96%) | 1.63 (0.36–7.37) | 0.379 | – | – |
| Preoperative anemia (Hb ≤ 10 g/dL) | 0.74 (0.09–5.76) | 1.000 | – | – |
| p-Stage II/III vs. I | 1.53 (0.94–2.50) | 0.083 | – | – |
| High CONUT (> 1) | 2.42 (1.51–3.87) | < 0.001 | 1.91 (1.17–3.10) | 0.009 |
CI confidence interval, CONUT controlling nutritional status, HR hazard ratio, OR odds ratio, PPC postoperative pulmonary complication(s).