Table 3 Comparison of radiological findings among the CPFE, IPF-alone, and emphysema-alone groups
| Â | CPFE | IPF | Emphysema | Â |
|---|---|---|---|---|
|  | (n = 22) | (n = 8) | (n = 17) | p-value |
TWCLs | 16 (72.7%) | 0 | 0 | 0.001 |
in upper lobe | 11 (68.8%) | - | - | - |
in lower lobe | 10 (62.5%) | - | - | - |
IP pattern | Â | Â | Â | Â |
UIP | 11 (50%) | 8 (100%) | - | 0.13 |
Possible UIP | 4 (18.2%) | 0 | - | 0.267 |
Inconsistent UIP | 7 (31.8%) | 0 | - | 0.084 |
IP characteristics | Â | Â | Â | Â |
Honeycombing | 11 (50%) | 8 (100%) | - | 0.084 |
Reticular opacity | 10 (45.5%) | 8 (100%) | - | 0.007 |
Ground-glass opacity | 9 (40.9%) | 2 (25%) | - | 0.363 |
Consolidation | 1 (4.5%) | 3 (37.5%) | - | 0.048 |
Traction bronchiectasis | 1 (4.5%) | 0 | - | 0.733 |
Emphysema pattern | Â | Â | Â | Â |
Centrilobular | 15 (68.2%) | - | 14 (82.4%) | 0.265 |
Paraseptal | 17 (77.3%) | - | 9 (53.0%) | 0.11 |
Bullae | 11 (50%) | - | 5 (29.4%) | 0.195 |
Degree of emphysema in upper lobe | Â | Â | Â | Â |
<25% | 4 (18.2%) | - | 7 (41.2%) | 0.111 |
25–50% | 7 (31.8%) | - | 5 (29.4%) | 0.872 |
>50% | 11 (50%) | - | 5 (29.4%) | 0.195 |