| Group A patients | Group B patients | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 5 |
Anti-Scl-70 antibodies, U/ml | ||||||||||
 Baseline | 120 | +a | 0 | 10.2 | +a | 0 | +a | 39.1 | 130 | 21.3 |
 2–3 years | 32.9 | 0 | 0 | 0 | 390 | 0 | 240 | 31.1 | 106.5 | 0 |
 4–5 years | 11.6 | 0 | 0 | 0 | 257 | 0 | 352 | 15.9 | +a | 0 |
 Long term | 0 | 0b | 0b | 0 | >8b | 0 | 3.8b | >8b | 250 | 0 |