Table 2.
Characteristics of Patients with a Negative CT Post- Lung Biopsy According to Diagnosed Pneumothorax on Follow-up Chest X-ray
| Characteristic | No PNX on CXR | PNX on CXR | P-value |
|---|---|---|---|
| Number of subjects | 282 | 17 | |
| Age, years | 69 ± 13 | 61 ± 14 | 0.02 |
| Gender (Male) | 150 (53%) | 10 (59%) | 0.8 |
| History of Smoking | 113 (40%) | 6 (35.3%) | 0.8 |
| Pack Years | 18 ± 31 | 17 ± 28 | 0.86 |
| Emphysema Diagnosis | 20 (7%) | 0 | 0.6 |
| Lesion length, cm | 3.1 ± 2.1 | 2 ± 1.1 | < 0.01 |
| Lesion width, cm | 2.8 ± 2.2 | 1.6 ± 0.8 | < 0.01 |
| Distance from pleura, cm | 1.6 ± 3.8 | 3.2 ± 1.8 | < 0.01 |
| Lesion Locus | |||
| Upper Lobes | 117 (42%) | 11 (65%) | 0.06 |
| Lower Lobes | 165 (58%) | 6 (35%) | |
| Number of punctures performed | 1.8 ± 0.7 | 1.5 ± 0.5 | 0.16 |
| Patient Posture | |||
| Prone | 168 (60%) | 11 (65%) | 0.01 |
| Supine | 96 (34%) | 2 (12%) | |
| Decubitus | 18 (6%) | 4 (23%) | |
| On-spot Pathologic Diagnosis | |||
| Non-Diagnostic | 15 (5%) | 3 (18%) | 0.11 |
| Benign | 102 (36%) | 6 (35%) | |
| Malignant | 165 (58%) | 8 (47%) | |
P-values < 0.05 are shown in bold
Data presented as mean ± SD or N (%). CXR- Chest X-ray; PNX- Pneumothorax