Table 1.
Patient characteristics
| Air bronchogram | GGO | |||||
|---|---|---|---|---|---|---|
| Characteristic | AB type | Non‐AB type | P | GGO type | Non‐GGO type | P |
| Total cases | 12 | 23 | 5 | 30 | ||
| Gender | ||||||
| Male | 8 | 19 | 0.452 | 3 | 24 | 0.568 |
| Female | 4 | 4 | 2 | 6 | ||
| Age | ||||||
| ≤ 70 | 7 | 16 | 1.0 | 2 | 21 | 0.313 |
| > 70 | 5 | 7 | 3 | 9 | ||
| Smoking habit | ||||||
| No | 2 | 3 | 0.823 | 3 | 2 | 0.014 |
| Yes | 10 | 20 | 2 | 28 | ||
| Tumor location | ||||||
| Upper lobe | 6 | 18 | 0.292 | 2 | 9 | 0.640 |
| The others | 6 | 5 | 3 | 21 | ||
| Pathological stage | ||||||
| I | 10 | 11 | 0.052† | 5 | 16 | 0.069† |
| II | 0 | 6 | 0 | 6 | ||
| III | 2 | 6 | 0 | 8 | ||
| Lymph node metastasis | ||||||
| Negative | 10 | 14 | 0.101 | 5 | 19 | 0.157 |
| Positive | 2 | 9 | 0 | 11 | ||
| Adjuvant therapy | ||||||
| No | 10 | 9 | 0.013 | 4 | 15 | 0.347 |
| Yes | 2 | 14 | 1 | 15 | ||
†
Stage I, II versus III.
AB, air bronchogram; GGO, ground glass opacity.