Table 1.
Univariate analysis of potential predictors of postoperative complications
| Overall (n = 173) | No complication (n = 135) | Complication (n = 38) | |||
|---|---|---|---|---|---|
| Variables | n (%), median ± SD | n (%), median ± SD | n (%), median ± SD | R‐vale | P‐value |
| Age (years) | 68 ± 10.1 | 67 ± 9.7 | 74 ± 10.1 | 0.29 | <0.01 |
| Male sex | 98 (56.6%) | 70 (51.9%) | 28 (73.7%) | 0.19 | 0.013 |
| Smoking index ≥600 | 66 (38.2%) | 49 (36.3%) | 17 (44.7%) | 0.07 | 0.364 |
| CCI score | 2 ± 1.4 | 1 ± 1.4 | 2 ± 1.5 | 0.20 | 0.010 |
| Albumin (g/dL) | 4 ± 0.5 | 4 ± 0.51 | 4 ± 0.46 | −0.14 | 0.060 |
| FEV1.0% <70% | 46 (26.6%) | 34 (25.1%) | 12 (31.6%) | 0.08 | 0.306 |
| Sarcopenia | 59 (34.1%) | 52 (38.5%) | 7 (18.4%) | 0.03 | 0.734 |
| PNI | 50 ± 5.2 | 51 ± 5.2 | 49 ± 5 | −0.16 | 0.043 |
| Operative findings | |||||
| Pleural adhesion | 33 (19.1%) | 22 (16.3%) | 11 (28.9%) | 0.22 | 0.005 |
| Mediastinal lymph node dissection | 91 (52.6%) | 73 (54.1%) | 18 (47.4%) | −0.06 | 0.464 |
| Conversion to thoracotomy | 3 (1.7%) | 3 (2.2%) | 0 (0%) | −0.06 | 0.450 |
| Operative time ≥ 5 h | 30 (17.3%) | 19 (14.1%) | 11 (28.9%) | 0.17 | 0.026 |
| Amount of bleeding (>100 mL) | 47 (27.2%) | 34 (25.2%) | 13 (34.2%) | 0.10 | 0.212 |
| Postoperative course | |||||
| Chest tube duration (day) | 3 ± 3.1 | 3 ± 1.3 | 7 ± 5.2 | 0.43 | <0.01 |
| Postoperative hospitalization (day) | 7 ± 5 | 7 ± 3.1 | 10 ± 8.3 | 0.45 | <0.01 |
| Pathological findings | |||||
| Nonadenocarcinoma | 30 (17.3%) | 18 (13.3%) | 12 (31.6%) | 0.20 | 0.010 |
| Solid component diameter (SCD) | 12 ± 10 | 12 ± 9.6 | 17 ± 10.6 | 0.19 | 0.015 |
| Lymph node metastasis | 19 (11%) | 14 (10.4%) | 5 (13.2%) | 0.03 | 0.662 |
CCI, Charlson Comorbidity Index; PNI, prognostic nutritional index; FEV1.0%, forced expiratory volume in 1 second as a percent of forced vital capacity.