Table 5 Postoperative complications in the whole cohort before and after propensity score matching
Clinical records | Before PSM | After PSM | ||||||
|---|---|---|---|---|---|---|---|---|
Uniportal cohort (n = 58) | Three-port cohort (n = 524) | Z/X2-value | p-value | Uniportal cohort (n = 57) | Three-port cohort (n = 57) | Z/X2-value | p-value | |
Postoperative complications | 11(19.00%) | 97(18.50%) | 0.007 | 0.93 | 11(19.30%) | 10(17.50%) | 0.06 | 0.81 |
Minor complications (Clavien-Dindo grade 1–2) | ||||||||
Persistent thoracic drainage | 6(10.30%) | 63(12.00%) | 0.14 | 0.71 | 6(10.50%) | 6(10.50%) | < 0.0001 | > 0.99 |
Persistent pulmonary leakage | 3(5.20%) | 38(7.30%) | 0.10 | 0.75 | 3(5.30%) | 2(3.50%) | < 0.0001 | > 0.99 |
Pulmonary infection | 2(3.40%) | 34(6.50%) | 0.39 | 0.53 | 2(3.50%) | 5(8.80%) | 0.61 | 0.44 |
Pneumoderm | 1(1.70%) | 14(2.70%) | < 0.0001 | > 0.99 | 1(1.80%) | 2(3.50%) | < 0.0001 | > 0.99 |
Arrhythmia | 1(1.70%) | 5(1.00%) | < 0.0001 | > 0.99 | 1(1.80%) | 0(0.00%) | < 0.0001 | > 0.99 |
Others | 2(3.40%) | 38(7.30%) | 0.66 | 0.42 | 2(3.50%) | 3(5.30%) | < 0.0001 | > 0.99 |
Major complications (Clavien-Dindo grade 3–5) | ||||||||
Dyspnea | 0(0.00%) | 5(1.00%) | < 0.0001 | > 0.99 | 0(0.00%) | 1(0.20%) | < 0.0001 | > 0.99 |
Pulmonary infection | 0(0.00%) | 4(0.80%) | < 0.0001 | > 0.99 | 0(0.00%) | 0(0.00%) | – | – |
Chylothorax | 0(0.00%) | 3(0.60%) | < 0.0001 | > 0.99 | 0(0.00%) | 0(0.00%) | – | – |
Pulmonary embolism | 0(0.00%) | 1(0.20%) | < 0.0001 | > 0.99 | 0(0.00%) | 0(0.00%) | – | – |
Post-discharge complications | 3(5.20%) | 22(4.20%) | < 0.0001 | > 0.99 | 3(5.30%) | 3(5.30%) | < 0.0001 | > 0.99 |
Generalized pruritus | 0(0.00%) | 4(0.80%) | < 0.0001 | > 0.99 | 0(0.00%) | 2(3.50%) | 0.51 | 0.48 |
Chest pain | 2(3.40%) | 7(1.30%) | 0.46 | 0.50 | 2(3.50%) | 1(1.80%) | < 0.0001 | > 0.99 |