| ANA negative (n = 41) | ANA positive (n = 18) | ||||
---|---|---|---|---|---|---|
 | Initial | Follow-up | p-value | Initial | Follow-up | p-value |
FVC (%) | 72.1 ± 20.6 | 83.2 ± 15.5 | 0.008 | 68.6 ± 19.5 | 76.4 ± 18.1 | 0.102 |
FEV1 (%) | 80.1 ± 23.7 | 91.4 ± 19.7 | 0.005 | 75.4 ± 19.0 | 83.7 ± 19.1 | 0.091 |
DLco (%) | 68.7 ± 24.9 | 80.8 ± 26.0 | <0.001 | 62.9 ± 21.1 | 64.9 ± 23.4 | 0.568 |