Clinical features | Patients with malignant GGOs (n = 139) | Patients with benign GGOs (n = 87) | P Value |
---|---|---|---|
Age (years) | 61.5 ± 9.5 | 52.6 ± 12.7 | <  0.001 |
Gender | |||
 Female | 83 (59.7) | 37 (42.5) | 0.012 |
 Male | 56 (40.3) | 50 (57.5) |  |
Smoking history | |||
 Yes | 42 (30.2) | 27 (31.0) | 0.897 |
 No | 97 (69.8) | 60 (69.0) |  |
History of malignant tumor | |||
 Yes | 9 (6.5) | 17 (19.5) | 0.003 |
 No | 130 (93.5) | 70 (80.5) |  |
Family history of lung cancer | |||
 Yes | 11 (7.9) | 1 (1.1) | 0.057 |
 No | 128 (92.1) | 86 (98.9) |  |
Respiratory symptoms | |||
 Yes | 34 (24.5) | 14 (16.1) | 0.134 |
 No | 105 (75.5) | 73 (83.9) |  |