Table 1 Comparison of clinical features and imaging features between benign and malignant nodules
Characteristic | Benign lung nodules group (n = 19) | Malignant lung nodules group (n = 20) | P value |
|---|---|---|---|
Clinical | |||
Age, years | 53.11 ± 11.66 | 63.25 ± 9.48 | 0.005a |
Male, % | 47.37 | 75.00 | 0.12c |
Smoking history, % | 26.32 | 70.00 | 0.01c |
Smoking, cigarettes/year | 64.21 ± 131.42 | 565.00 ± 499.76 | 0.001a |
Family history of cancer, % | 5.26 | 15.00 | 0.61c |
Emphysema, % | 0.00 | 25.00 | 0.04c |
Radiological | |||
Location, % | |||
LUL | 26.32 | 25.00 | |
LLL | 15.79 | 0 | |
RUL | 42.10 | 30.00 | |
RLL | 15.79 | 45.00 | 0.10b |
Diameter, mm | 15.21 ± 6.98 | 21.50 ± 7.06 | <0.001a |
Density, % | |||
Solid | 78.95 | 65.00 | |
Hyaline membrane | 10.53 | 20.00 | |
Mixed | 10.53 | 15.00 | 0.61b |
Lobulation, % | 10.53 | 30.00 | 0.24c |
Spiculation, % | 31.58 | 70.00 | 0.03c |
Air bronchogram, % | 21.05 | 20.00 | 1.00c |
Vessels sign, % | 0.00 | 30.00 | 0.02c |
Cavitation, % | 0.00 | 20.00 | 0.11c |
Calcification, % | 15.79 | 0.00 | 0.11c |
Pleural tail, % | 31.58 | 55.00 | 0.20c |