| Variables | n(%) |
| Sex |
|
| Male | 13 (22.8) |
| Female | 44 (77.2) |
| Age | 49.5 ±11.4 years |
| Age at diagnosis | 43.1 ± 13.0 years |
| Diagnosis time | 6.4 ±6.2 years |
| Procedence |
|
| Capital (Teresina) | 18 (31.6) |
| Others cities of Piaui | 25 (43.9) |
| Others states | 14 (24.5) |
| Race |
|
| Caucasian | 05 (8.8) |
| Non Caucasian | 52 (91.2) |
| Cause of Hospitalization |
|
| Diagnostic tests | 05 (7.1) |
| Follow-up exams | 10 (14.2) |
| Pulse therapy | 31 (44.3) |
| Infectious complication | 14 (20.0) |
| Complication of the Disease |
|
| Sclerodermic renal crisis | 02 (2.9) |
| Others | 02 (2.9) |