Table 4.
The criteria for UV diagnosis.
| Answer Choicesa | Respondents, % (n) |
|---|---|
| Wheals predominantly >24 h | 72.4 (492) |
| Histological analysis | 63.2 (429) |
| Presence of post-inflammatory hyperpigmentation | 46.1 (313) |
| Poor response to antihistamines | 27.8 (189) |
| Systemic symptoms (e.g. fever, arthralgia, abdominal pain) | 24.9 (169) |
| High levels of inflammation markers, e.g. ESR, CRP | 22.2 (151) |
| Low complement levels | 17.2 (117) |
| Presence of underlying disease (e.g. malignancy, SLE) | 5.8 (40) |
| Other | 2.9 (20) |
Total number of respondents = 679;
a
Each respondent was asked to choose only the 3 most important signs and/or symptoms; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; SLE: systemic lupus erythematosus