Table 1. Patients distribution
| Patients | n | Gender | Age, mean | Diagnosis | Mean time evolution | Tobacco | PAH |
|---|---|---|---|---|---|---|---|
| (%) | (years) | (years) | |||||
| With DU | 46 (56,1) | F:41 | 54,5 | dSSc:33 | 8,1 | 21 | 18 |
| M:5 | lSSc:13 | ||||||
| Without DU | 36 | F:35 | 53,1 | dSSc:23 | 6,1 | 15 | 13 |
| M:1 | lSSc:13 | ||||||
| p value | NS | NS | NS | NS | NS | NS |