No erectile dysfunction (n= 23) | Erectile dysfunction (n= 105) | Odds ratio (95% confidence interval) | |
---|---|---|---|
IIEF-5 score | 23 (22 to 25) | 11 (5 to 16) | P < 0.001* |
Age (years)a | 45 (35.1 to 51.8) | 55.7 (47.1 to 62.9) | P < 0.001* |
SSc duration by Raynaud's phenomenon (years) | 7.2 (4.3 to 15.3) | 7.0 (3.4 to 11.6) | P = 0.44 |
SSc duration by first non-Raynaud's symptom (years) | 6.6 (4.3 to 11.8) | 5.6 (2.8 to 9.8) | P = 0.41 |
Topoisomerase I (Scl70)-positive | 47.6 | 45.1 | 0.98 (0.80 to 1.19) |
ACA-positive | 5.0 | 18.8 | 1.21 (1.02 to 1.44)* |
U1RNP-positive | 0 | 5.9 | 1.25 (1.12 to 1.39)* |
RNA polymerase III-positive | 0 | 3.5 | 1.20 (1.08 to 1.33)* |
Diffuse SSc | 50 | 65.9 | 1.13 (0.92 to 1.40) |
Puffy hands | 57.1 | 52.9 | 0.97 (0.80 to 1.16) |
mRSS | 7 (2 to 19) | 14 (8 to 23) | P = 0.05* |
mRSS > 20 | 15.8 | 26.8 | 1.13 (0.91 to 1.40) |
C-reactive protein elevation | 14.3 | 25.3 | 1.13 (0.93 to 1.37) |
Raynaud's phenomenon | 90.5 | 95.5 | 1.22 (0.69 to 2.17) |
Digital ulcers | 47.6 | 41.9 | 0.95 (0.79 to 1.16) |
Synovitis | 19.1 | 19.5 | 1.01 (0.80 to 1.27) |
Joint contractures | 19.1 | 33.3 | 1.14 (0.95 to 1.36) |
Tendon friction rubs | 4.8 | 10.3 | 1.13 (0.90 to 1.42) |
Muscle weakness | 9.5 | 20.7 | 1.15 (0.96 to 1.38) |
Muscle atrophy | 4.8 | 18.4 | 1.21 (1.03 to 1.42)* |
Creatine kinase elevation | 19.1 | 12.2 | 0.88 (0.62 to 1.25) |
Oesophageal symptoms | 57.1 | 59.1 | 1.02 (0.84 to 1.23) |
Stomach symptoms | 19.1 | 12.5 | 0.90 (0.65 to 1.23) |
Intestinal symptoms | 4.8 | 15.9 | 1.19 (0.99 to 1.41) |
Lung fibrosis on chest X-ray or HRCT | 42.9 | 56.9 | 1.13 (0.87 to 1.47) |
Forced vital capacity (% predicted) | 95 (87 to 107) | 91 (78 to 192) | P = 0.52 |
Forced vital capacity < 80% | 9.5 | 25.7 | 1.26 (1.01 to 1.56)* |
DLCO (% predicted) | 81 (73 to 91) | 66 (53 to 82) | P = 0.08 |
DLCO < 80% | 42.9 | 63.6 | 1.24 (0.95 to 1.61) |
PAPsys (mmHg) | 23.5 (0 to 28) | 29 (22 to 37) | P = 0.04* |
PAPsys > 40 mmHg | 0 | 24.4 | 1.32 (1.17 to 1.50)* |
Diastolic dysfunction | 15.8 | 17.3 | 1.02 (0.79 to 1.33) |
Pericardial effusion | 5.6 | 4.4 | 0.95 (0.53 to 1.68) |
Left ventricular ejection fraction < 60% | 27.8 | 18.3 | 0.88 (0.65 to 1.20) |
Renal crisis | 0 | 4.6 | 1.25 (1.14 to 1.38)* |
Proteinuria | 19.1 | 6.0 | 0.68 (0.37 to 1.22) |
EULAR SSc activity score | 1.0 (0.5 to 2.0) | 2.5 (1.0 to 3.5) | P = 0.02* |
High SSc activity (score ≥ 3) | 11.8 | 43.4 | 1.38 (1.09 to 1.75)* |
Hypocomplementaemia | 5.0 | 6.3 | 1.05 (0.72 to 1.52) |