Table 1 Relationship between occurrence of pneumothorax and clinical factors evaluated.
From: Is emphysema a risk factor for pneumothorax in CT-guided lung biopsy?
Clinical factors | Patients with pneumothorax | Patients without pneumothorax | p value |
|---|---|---|---|
No. (%) | 41 (40.2%) | 61 (59.8%) | NS |
Age, yr | 72.3 (55-84) | 68.3 (42-86) | NS |
Male/Female | 30/11 | 39/22 | NS |
Location of lesion | |||
Upper or middle | 22 | 33 | NS |
Lower | 19 | 28 | |
Lesion size, mm | 23.6 (10-65.8) | 32.3 (10-85) | 0.006 |
Lesion depth, mm | 6.67 (0-46.6) | 3.66 (0-39) | 0.019 |
COPD staging | |||
I | 17 | 17 | 0.199 |
II | 8 | 4 | 0.062 |
III | 1 | 0 | 0.402 |
IV | 0 | 0 | 1.000 |
Unknown | 5 | 15 | 0.137 |
LAA (±SD) | 5.73 (±5.6) | 4.79 (±4.32) | 0.339 |
LAA in puncture route (±SD) | 0.73 (±0.95) | 0.77 (±0.86) | 0.831 |