Characteristics of the two main variants
| Diffuse (%) | Limited (%) | |
| Cutaneous sclerosis | Proximal | Distal (hands, feet, face, forearms) |
| Raynaud's phenomenon | Recent | Old (for years) |
| Calcinosis | 20 | 40 |
| Telangiectasia | 60 | 90 |
| Interstitial pulmonary fibrosis | 70 | 5 |
| Pulmonary hypertension | 5 | 35 |
| Renal crisis | 20 | 1 |
| Anti Scl-70 antibodies | 30 | 10 |
| Anticentromere antibodies | 10 | 75 |
| Ten years' survival | 50 | 70 |