Table 2. Comparison of patient characteristics and perioperative results between the uniportal and multiportal approach groups.
| Variables | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
| Uniportal group, n=42 | Multiportal group-1, n=147 | P value | Multiportal group-2, n=42 | P value | ||
| Age (years) | 72±10.1 | 71.1±6.5 | 0.51 | 71.8±6.1 | 0.93 | |
| Sex, n (%) | 1 | 1 | ||||
| Female | 17 (40.5) | 58 (39.5) | 17 (40.5) | |||
| Male | 25 (59.5) | 89 (60.5) | 25 (59.5) | |||
| Tumor localization, n (%) | 0.22 | 0.54 | ||||
| LUL | 4 (9.5) | 30 (20.4) | 2 (4.8) | |||
| LLL | 7 (16.5) | 32 (21.8) | 5 (11.9) | |||
| RUL | 12 (28.6) | 44 (29.9) | 18 (42.9) | |||
| RML | 3 (7.1) | 7 (4.8) | 5 (11.9) | |||
| RLL | 16 (38.1) | 34 (23.1) | 12 (28.6) | |||
| Histology, n (%) | 1 | 0.93 | ||||
| Adenocarcinoma | 30 (71.4) | 103 (70.1) | 32 (76.2) | |||
| Squamous cell carcinoma | 8 (19.0) | 29 (19.7) | 6 (14.3) | |||
| Others | 4 (9.5) | 15 (10.2) | 4 (9.5) | |||
| Pathological stage, n (%) | - | 1 | ||||
| 0 | 1 (2.4) | 4 (2.7) | 1 (2.4) | |||
| IA1 | 3 (7.1) | 27 (18.4) | 5 (11.9) | |||
| IA2 | 13 (31.0) | 29 (19.7) | 14 (33.3) | |||
| IA3 | 8 (19.0) | 12 (8.2) | 7 (16.7) | |||
| IB | 9 (21.4) | 27 (18.4) | 8 (19.0) | |||
| IIA | 3 (7.1) | 9 (6.1) | 3 (7.1) | |||
| IIB | 2 (4.8) | 15 (10.2) | 1 (2.4) | |||
| IIIA | 3 (7.1) | 21 (14.3) | 3 (7.1) | |||
| IIIA | 0 (0) | 2 (1.4) | 0 (0) | |||
| IVA | 0 (0) | 1 (0.7) | 0 (0) | |||
| Operative time (min) | 147±43 | 217±49 | <0.0001* | 207±50 | <0.0001* | |
| Blood loss (g) | 59±113 | 52±80 | 0.67 | 35±54 | 0.23 | |
| Duration of postoperative drainage (days) | 1.5±1.2 | 3.1±2.1 | <0.0001* | 3.2±2 | <0.0001* | |
| Postoperative PAL (≥5 days), n (%) | 1 (2.4) | 30 (20.4) | 0.0038* | 11 (26.2) | 0.0034* | |
| Length of postoperative hospitalization (days) | 8.9±30 | 7.4±13 | 0.63 | 5.5±3.4 | 0.47 | |
| Conversion to thoracotomy, n (%) | 3 (7.1) | 13 (8.8) | 1 | 3 (7.1) | 1 | |
| Intraoperative massive bleeding, n (%) | 1 (2.4) | 7 (4.8) | 0.69 | 0 (0) | 1 | |
| Readmission within 30 days after discharge, n (%) | 0 (0) | 12 (8.2) | 0.072 | 3 (7.1) | 0.24 | |
| Morbidity, n (%) | 3 (7.1) | 30 (20.4) | 0.063 | 8 (19) | 0.19 | |
| 30-day mortality | 0 (0) | 0 (0) | – | 0 (0) | – | |
| 90-day mortality | 0 (0) | 0 (0) | – | 0 (0) | – | |
*, significant values. PAL, prolonged air leak; LLL, left lower lobe; LUL, left upper lobe; RLL, right lower lobe; RML, right middle lobe; RUL, right upper lobe.