Abstract
Possible risk factors for psoriasis were studied by means of a retrospective evaluation of epidemiological and clinical features in 472 clinical records of outpatients affected by plaques psoriasis. We calculated the relation between the categorical variables with chi-squares contingency table analysis (with Yates correction) and odds ratio (O.R.) from the two variables with their respective confidence intervals at 95%. Among patients 267 were men (57%) and 205 women (43%); the mean age was 46.5+/-16.7 years, with no differences in sex. A significant relationship was found between age at onset <or =40 years and familiarity for psoriasis (p30%) was significantly higher than of women (p
| Original language | English |
|---|---|
| Pages (from-to) | 753-758 |
| Number of pages | 6 |
| Journal | Annali di igiene : medicina preventiva e di comunità |
| Volume | 16 |
| Issue number | 6 |
| Publication status | Published - 2004 |