Table 3.
Subgroup analysis of pneumothorax
| Influence factor | Pneumothorax | t/c2,P | |
|---|---|---|---|
| Yes(n = 67) | No(n = 125) | ||
| Sex (Male/female) | 45/22 | 84/41 | 0.000, 0.996 |
| Age (years) | 61.8 ± 15.0 | 62.3 ± 12.6 | 0.213, 0.831 |
| Smoking history (Yes/No) | 11/56 | 18/107 | 0.139, 0.710 |
| Pulmonary emphysema (Yes/No) | 16/51 | 31/94 | 0.020, 0.888 |
| Lesion diameter | 2.8 ± 1.6 | 3.7 ± 2.4 | 3.125, 0.002 |
| Lesion feature | |||
| Solid | 59 | 105 | 2.167, 0.352 |
| Ground glass | 5 | 17 | |
| Cavity | 3 | 3 | |
| Lesion location | |||
| Right upper lobe | 16 | 23 | 5.549, 0.234 |
| Right middle lobe | 3 | 9 | |
| Right lower lobe | 21 | 28 | |
| Left upper lobe | 18 | 33 | |
| Left lower lobe | 9 | 32 | |
| Patient position (Supine/Prone) | 25/42 | 47/78 | 0.002, 0.969 |
| Gelfoam (Yes/No) | 18/49 | 59/66 | 7.509, 0.006 |
| Pathology results(Benign/Malignant/ Insufficient material) | 19/46/2 | 29/95/1 | 2.228, 0.310 |
| Radiofrequency ablation (Yes/No) | 23/44 | 20/105 | 8.431, 0.004 |
| The number of samples | |||
| 1 | 28 | 41 | 1.668, 0.647 |
| 2 | 31 | 65 | |
| 3 | 6 | 15 | |
| 4 | 2 | 4 | |