Table 2 Univariate survival analysis of prognostic factors of 366 patients with systemic sclerosis (SSC)
5-year survival (%) organ involvement10-year survival (%) organ involvement
PresentAbsentPresentAbsent
Log rank test
Teleangiectasia85.5481.7572.4573.75NS
Pigmentation disturbances77.0087.9166.5075.94p<0.05
Increased ESR55.2690.5232.4082.49p<0.001
Oesophageal dilatation83.9684.2565.3579.42NS
Oesophageal strictures83.9684.0763.3475.66NS
Decreased Schirmer’s test88.1382.2175.5471.42NS
Myositis78.3184.9966.1473.68NS
Scleroderma renal crisis45.0086.4724.1175.77p<0.001
Calcinosis90.3283.2470.7472.75NS
Heart involvement72.7189.2753.9081.11p<0.001
Lung involvement82.7888.0169.4681.86NS
Bibasilar fibrosis on chest x ray84.8073.00
Diffuse fibrosis on chest x ray84.1262.87
FVC<50%59.6685.9350.4874.40p<0.003
Joint contractures77.6688.2264.8077.73NS
Haematocrit<33%63.2888.0531.5078.16p<0.001
Malabsorption58.6184.820.0074.16p<0.01
Anti-topoisomerase antibody77.5887.7263.3578.17p<0.01
Anti-centromere antibody95.4982.1688.5569.94p<0.02
Early malignancy35.1686.3817.5875.38p<0.001
  • Kaplan–Meier curves with log-rank test, and survival rates in different subsets were calculated.

  • ESR, erythrocyte sedimentation rate; FVC, forced vital capacity.