Table 2. Perioperative outcomes of female and male patients.
| Outcomes | Female (n=5,738) | Male (n=4,443) | P |
|---|---|---|---|
| Complications, n (%) | 290 (5.05) | 540 (12.15) | <0.001 |
| PAL | 177 (3.08) | 337 (7.58) | <0.001 |
| Pulmonary infection | 50 (0.87) | 118 (2.66) | <0.001 |
| Chylothorax | 40 (0.70) | 60 (1.35) | 0.001 |
| Atelectasis | 7 (0.12) | 14 (0.32) | 0.06 |
| Respiratory failure | 6 (0.10) | 17 (0.38) | 0.007 |
| Pulmonary embolism | 6 (0.10) | 4 (0.09) | >0.99 |
| Arrhythmia | 4 (0.07) | 8 (0.18) | 0.19 |
| Surgical site infection | 3 (0.05) | 2 (0.05) | >0.99 |
| Gastrointestinal complications | 2 (0.03) | 13 (0.29) | 0.002 |
| Urinary tract infection | 3 (0.05) | 2 (0.05) | >0.99 |
| Length of postoperative hospital stays, days, mean (SD) | 4.92 (2.81) | 6.41 (3.99) | <0.001 |
| Chest drainage volume in the first 3 days, mL, mean (SD) | 482.23 (336.82) | 541.91 (372.79) | <0.001 |
| Hospitalization cost, CNY, mean (SD) | 50,713.69 (11,159.19) | 54,580.85 (12,701.56) | <0.001 |
| Death in hospital, n (%) | 3 (0.05) | 10 (0.23) | 0.03 |
P values are calculated using the Student’s t-test for continuous variables and the Chi-squared test or Fisher’s exact test for categorical variables as appropriate. PAL, prolonged air leak; SD, standard difference; CNY, Chinese Yuan.