Table 1. General data of patients in the PV and PA groups.
| Characteristics | PV (n=33) | PA (n=27) | P values |
|---|---|---|---|
| Gender (male) | 66.67% (22/33) | 70.37% (19/27) | 0.761 |
| Age (year) | 59.55 | 62.15 | 0.327 |
| Combine with COPD | 0.458 | ||
| Yes | 7 | 8 | |
| No | 26 | 19 | |
| Lesion location | 0.004 | ||
| Right upper lobe | 18 | 6 | |
| Right middle lobe | 5 | 1 | |
| Right lower lobe | 2 | 10 | |
| Left upper lobe | 8 | 3 | |
| Left lower lobe | 0 | 7 | |
| Tumour pathological type | 0.955 | ||
| Squamous cell carcinomas | 5 | 7 | |
| Adenocarcinoma | 22 | 18 | |
| Gland scale cancer | 4 | 1 | |
| Others | 2* | 1△ | |
| T stage of tumour pathological | 0.288 | ||
| T1 | 10 | 2 | |
| T2 | 15 | 21 | |
| T3 | 7 | 4 | |
| T4 | 1 | 0 | |
| TNM stage of tumour pathological | 0.471 | ||
| IA | 8 | 1 | |
| IB | 6 | 9 | |
| IIA | 2 | 4 | |
| IIB | 6 | 5 | |
| IIIA | 10 | 5 | |
| IIIB | 0 | 3 | |
| IVA | 1 | 0 | |
| TKIs treatment | 0.368 | ||
| Yes | 8 | 4 | |
| No | 25 | 23 | |
| Tumour-related death | 14 | 17 | 0.227 |
| 5-year survival | |||
| DFS | 39.39% (13/33) | 29.63% (8/27) | 0.430 |
| OS | 66.67% (22/33) | 44.44% (12/27) | 0.084 |
*, one case of large cell carcinoma with squamous cell carcinoma, the other case of large cell carcinoma with adenocarcinoma; △, the case of adenocarcinoma complicated with carcinoid. PV, pulmonary vein; PA, pulmonary artery; COPD, chronic obstructive pulmonary disease; DFS, disease-free survival; OS, overall survival.