Table 1 Patient P-pGGN characteristics
Variable | IAC(N=53) | MIA(N=47) | Total | P value |
|---|---|---|---|---|
Age Median (25th to 75th percentile) years | 63.00 (56.00~67.00) | 55.50 (44.50~63.50) | 60.50 (50.00~66.00) | 0.006 |
Sex/Male No. (%) | 16 (30.19) | 13 (27.66) | 29 (29.00) | 0.781 |
Smoking history, No. (%) | Â | Â | Â | 0.719 |
 Ever smokers | 5 (9.43) | 3 (6.38) | 8 (8.00) |  |
 Never smokers | 48 (90.57) | 44 (93.62) | 92 (92.00) |  |
Underlying disease | Â | Â | Â | 0.000 |
Positive | ||||
 Bronchitis | 1 (1.00) | 0 (0.00) | 1 (1.00) |  |
 Pulmonary bullae | 7 (7.00) | 0 (0.00) | 7 (7.00) |  |
 Emphysema | 7 (7.00) | 0 (0.00) | 7 (7.00) |  |
 Tuberculosis | 0 (0.00) | 1 (1.00) | 1 (1.00) |  |
Negative | 38 (38.00) | 46 (46.00) | 84 (84.00) | Â |