Variable | Zone | Healthy | IPF | p-value |
---|---|---|---|---|
Subpleural reticulation | Upper | 2.31 (3.88) | 38 (27) | < 0.001 |
Middle | 0.00 (0.00) | 51 (23) | < 0.001 | |
Lower | 0.00 (0.00) | 72 (25) | < 0.001 | |
Traction | Upper | 0.00 (0.00) | 7 (10) | 0.003 |
Middle | 0.00 (0.00) | 24 (20) | < 0.001 | |
Lower | 0.00 (0.00) | 47 (32) | < 0.001 | |
Ground-glass opacification | Upper | 0.00 (0.00) | 16 (10) | < 0.001 |
Middle | 0.00 (0.00) | 30 (21) | < 0.001 | |
Lower | 0.00 (0.00) | 49 (26) | < 0.001 | |
Honeycombing | Upper | 0.00 (0.00) | 3 (7) | 0.082 |
Middle | 0.00 (0.00) | 6 (11) | 0.082 | |
Lower | 0.00 (0.00) | 13 (14) | 0.001 | |
Emphysema | Upper | 0.00 (0.00) | 2 (7) | 0.247 |
Middle | 0.00 (0.00) | 1 (3) | 0.247 | |
Lower | 0.00 (0.00) | 0 (0) | N/A |