| pSS (10/45) | RA (19/39) | DM/PM (6/52) | SSc (1/31) | Total CTD (27/169) |
CTD-ILD | 43.2 ± 12.7 | 46.9 ± 11.6 | 34.6 ± 16.2 | 36.8 ± 11.6 | 42.0 ± 13.5 |
CTD+ILD | 53.1 ± 11.6 | 54.0 ± 14.1 | 45.5 ± 14.8 | 44.0 ± 13.8 | 48.8 ± 14.3 |
P value | 0.003 | 0.089 | 0.039 | 0.273 | 0.002 |