Research Article
Measurement of Serum Klotho in Systemic Sclerosis
Table 1
Demographic and clinical characteristics of SSc patients.
| Characteristics | Scleroderma patients (number 81) |
| Age (years) (mean ± standard deviation) | 63.9 ± 13.1 | Sex (F/M) (number) | 74/7 | Disease duration (years) (mean ± standard deviation) | 12.4 ± 8.9 | Clinical form (limited/diffuse) (number) | 59/22 | Antinucleus autoantibody positivity (number) | 74 | Anticentromere autoantibody positivity (number) | 41 | Anti-SCL70 autoantibody positivity (number) | 19 | Erythrocyte sedimentation ratio, 1st hour mm (median, range) | 15, 2.0–84 | C-reactive protein, mg/L (median, range) | 2.1, 0–24 | Serum creatinine, mg/dL (median, range) | 0.7, 0.49–2.22 | Digital ulcers (number) | 18 | Calcinosis (number) | 14 | Pulmonary artery hypertension screened through 2D echocardiography (number) | 19 | Lung interstitial disease (number) | 35 | Diffusing capacity or transfer factor of the lung for carbon monoxide per unit alveolar volume (%) (mean ± standard deviation) | 83.3 ± 15.2 | | Vital capacity (%) (mean ± standard deviation) | 100.3 ± 17.4 | Medsger’s scale score (mean ± standard deviation) | 4.3 ± 2.3 | Modified Rodnan skin score (median, range) | 4.5, 0–30 | Osteoporosis (number) | 32 |
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