| Cases (%) | Controls (%) | p | |
|---|---|---|---|
| DSS | 1 (5) | 33 (60) | 0.000 |
| LSS | 18 (90) | 21 (38.2) | |
| Raynaud's fenomenon | 20 (100) | 54 (98.2) | 1.00 |
| Digital ulcers | 7 (35) | 30 (54.5) | 0.298 |
| Telangiectasia | 13 (65) | 36 (65.5) | 0.971 |
| Esophageal afection | 9 (45) | 41 (74.5) | 0.016 |
| Tricuspid regurgitation | 17 (85) | 28 (53.8) | 0.014 |
| Ischemical disease | 1 (5) | 2 (3.7) | 1.000 |
| Smoking | 3 (15) | 3 (5.5) | 0.333 |
| Anticentromere | 19 (95.0) | 22 (40.0) | 0.000 |
| AntiScl70 | 0 (0) | 15 (27.3) | 0.008 |