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Table 1 Demographic and clinical characteristics

From: A polymorphism in the human serotonin 5-HT2A receptor gene may protect against systemic sclerosis by reducing platelet aggregation

Variable Value (n = 115)
Females 108 (93.9)
Limited cutaneous systemic sclerosis 84 (73)
Autoantibody  
   Antinuclear antibody without specific pattern 19 (16.5)
   Anticentromere antibody 44 (38.3)
   Antitopoisomerase I antibody 50 (43.5)
Age at onset (years) 43.4 ± 12.6
Mean follow-up (years) 14.6 ± 8.7
Forced viral capacity <70% predicted 27 (23.4)
Diffusing capacity for carbon monoxide <70% predicted 82 (71.4)
Right systolic ventricular pressure ≥ 40 mmHg 22 (19.1)
Oesophageal involvement 110 (96.2)
Past history of digital ulcers 63 (54.7)
  1. Data presented as n (%) or as the mean ± standard deviation.