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| Characteristics | PV | PA | P values |
|---|---|---|---|
| Adenocarcinoma (cases) | 23 | 19 | |
| Gender (male) | 60.87% (14/23) | 68.42% (13/19) | 0.611 |
| Age (year) | 56.13 | 60.21 | 0.144 |
| Squamous cell carcinomas (cases) | 10 | 8 | |
| Gender (male) | 80.00% (8/10) | 75.00% (6/8) | 0.872 |
| Age (year) | 62.42 | 64.09 | 0.427 |
| Tumour diameter >3 cm (cases) | 27 | 21 | |
| Gender (male) | 70.37% (19/27) | 76.19% (16/21) | 0.653 |
| Age (year) | 58.73 | 61.69 | 0.396 |
PV, pulmonary vein; PA, pulmonary artery.
