Table 2. Univariate logistic regression of PAL presence.
| Variable | OR (95% CI) | P |
|---|---|---|
| Sex, male vs. female | 1.78 (1.25–2.55) | 0.002 |
| Age (years) | 1.04 (1.02–1.06) | <0.001 |
| BMI (kg/m2) | 0.96 (0.90–1.02) | 0.150 |
| PS score, ≥1 vs. 0 | 1.75 (1.20–2.56) | 0.004 |
| %FEV1 | 0.10 (0.04–0.25) | <0.001 |
| 0.8> %FEV1 ≥0.5 vs. %FEV1 ≥0.8 | 1.75 (1.19–2.57) | 0.004 |
| %FEV1 <0.5 vs. %FEV1 ≥0.8 | 4.27 (1.64–11.11) | 0.003 |
| ASA score | ||
| 2 points vs. 1 point | 1.56 (0.56–4.39) | 0.396 |
| 3 points vs. 1 point | 1.40 (0.48–4.10) | 0.543 |
| Surgical type | ||
| Segmentectomy vs. lobectomy/lobectomy + wedge resection | 0.27 (0.12–0.61) | 0.002 |
| Wedge resection vs. lobectomy/lobectomy + wedge resection | 0.10 (0.02–0.40) | 0.001 |
| Bilobectomy vs. lobectomy/lobectomy + wedge resection | 4.15 (1.74–9.89) | 0.001 |
| Surgical approach, VATS/RATS vs. thoracotomy | 0.36 (0.23–0.55) | <0.001 |
| Upper lobe surgery, yes vs. no | 1.10 (0.77–1.58) | 0.594 |
| Location of surgery, right vs. left | 0.99 (0.69–1.42) | 0.966 |
| Diabetes, yes vs. no | 0.90 (0.49–1.63) | 0.717 |
| Hypertension, yes vs. no | 0.66 (0.44–1.00) | 0.048 |
| Disease of respiratory system, yes vs. no | 1.40 (0.48–4.03) | 0.538 |
| Cardiovascular disease, yes vs. no | 1.43 (0.74–2.76) | 0.285 |
| Smoking status, past or current smoker vs. never smoker | 2.24 (1.57–3.20) | <0.001 |
| History of thoracic surgery, yes vs. no | 0.39 (0.09–1.63) | 0.198 |
ASA score, American Society of Anesthesiologists score; BMI, body mass index; CI, confidence interval; %FEV1, percent forced expiratory volume in 1 second; OR, odds ratio; PAL, prolonged air leak; PS, performance status; RATS, robot-assisted thoracic surgery; VATS, video-assisted thoracic surgery.