Measurement of the severity of rosacea - 24/08/11
, Charles E. Gessert, MD, MPH b, Colleen M. Renier, BS b
Reprint requests: Joel T. M. Bamford, MD, St. Mary's/Duluth Clinic Health System, 400 East Third St, Duluth, MN 55805-1983.Duluth, Minnesota
Résumé |
Background |
There are no standardized measures for the severity of rosacea.
Objectives |
To determine what clinical signs correlate best with global severity of rosacea, and to examine inter-rater reliability.
Methods |
Four clinicians each made 82 assessments of rosacea patients. Each assessment used 60 0-to-10 Likert-like scales for the signs of rosacea. Subjects also assessed the severity of their rosacea.
Results |
The clinicians' assessment of global severity correlated strongly with erythema, especially on the cheeks. Subjects' assessment of global severity correlated more strongly with papules/pustules. Different methods of assessing severity—estimation of area involved, intensity, or lesion counts—did not produce significantly different results. Inter-rater reliability was low on 11-point (0-10) scales, but improved when scales were collapsed to 5 or 4 points.
Conclusions |
Clinicians and patients assess severity of rosacea differently, with clinicians focusing on erythema and patients focusing on papules/pustules. New instruments for assessing severity must address inter-rater reliability.
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| Supported by the Duluth Clinic Education and Research Foundation. |
|
| Conflicts of interests: None identified. |
Vol 51 - N° 5
P. 697-703 - novembre 2004 Retour au numéro
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