Correlation of forced vital capacity change with fibrotic changes
| Fibrosis subtype | Week | Subjects n | Pearson's r | p-value |
| QLF | 24 | 74 | −0.520 | <0.0001 |
| 48 | 66 | −0.624 | <0.001 | |
| GG | 48 | 66 | −0.233 | 0.074# |
| QILD | 48 | 66 | −0.514 | <0.001 |
QLF: reticular fibrosis with architectural distortion; GG: ground glass; QILD: QLF+GG+honeycombing. #: nonsignificant.