Number | 25 | 25 | 20 |
Female:male | 16:9 | 21:4 | 15:5 |
Age (years), mean (SD) | 49.6 (14.3) | 59.4 (9.2) | 48.8 (11.0) |
SSc duration (years), mean (SD) | | 11.5 (7.7) | 4.6 (3.2) |
Total skin score, mean (SD) | – | 6.4 (3.9) | 26.7 (9.5) |
Local skin score, mean (SD) | – | | |
Forearm (F) | – | – | 1.75 (0.9) |
Shoulder (S) | – | – | 1.45 (0.9) |
Back (B) | – | – | 0.6 (0.7) |
Internal organ involvement |
Lung fibrosis | – | 4 | 13 |
Pulmonary hypertension | – | 5 | 1 |
Gastrointestinal tract | – | 20 | 12 |
Kidney | – | 1 | 1 |
Heart | – | 3 | 3 |
Autoantibodies* |
Antinuclear | – | 25 | 20 |
Anti-ENA | – | 2 | 0 |
Anticentromere | – | 12 | 0 |
Anti-Scl-70 | – | 1 | 10 |
Anti-RNA polymerase | – | 0 | 3 |