Organ system score | Severity index score in patients with systemic sclerosis | ||||
---|---|---|---|---|---|
No involvement = 0 | Mild involvement = 1 | Moderate involvement = 2 | Severe involvement = 3 | End stage failure = 4 | |
General | |||||
Haemoglobin (g/l) | >120 | 110–120 | 95–110 | 75–95 | <75 |
Skin score 0–72 | 0 | 1–19 | 20–39 | 40–59 | >60 |
Gastrointestinal function | |||||
Oesophageal cinematography and | 0 | 1–2 | 3 | 3 | 3 |
Triolein test (% of a given dose/h) | >1.5 | 1.0–1.5 | <1.0 | ||
Lung function | |||||
Vital capacity (% of normal) or | >80 | 70–80 | 50–69 | 40–49 | <40 |
compliance (% of normal) | >60 | 40–60 | 20–39 | 10–19 | <10 |
Renal function | |||||
Cr-EDTA clearance (ml/min) | 80–120 | 50–79 | 25–49 | 10–24 | <10 |