N = 33 | ||
---|---|---|
Gender (Male/Female) | 10/23 | |
Age (Years) | 63 | (54–70) |
Duration from onset (Months) | 36 | (10–84) |
Smoking (Non/Ex/Current) | 22/8/3 | |
Auto-antibodies | ||
Anti-topoisomerase I Ab | 17 | (52 %) |
Anti-centromere Ab | 6 | (18 %) |
Anti-RNA polymerase Ab | 2 | (6 %) |
Anti-Th/To Ab | 1 | (3 %) |
Anti-RNP Ab | 1 | (3 %) |
Unknown | 6 | (18 %) |
Coexisting rheumatic disease | ||
Sjögren's syndrome | 4 | (12 %) |
Primary biliary cirrhosis | 2 | (6 %) |
Sarcoidosis | 2 | (6 %) |
Rheumatoid arthritis | 1 | (3 %) |
Systemic lupus erythematosus | 1 | (3 %) |
Polymyositis | 1 | (3 %) |