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Abstract
Enumerating actinic keratoses (AKs) is highly variable but important to standardize as new therapies are emerging.To assess the reliability of four different methods used to quantify AKs and to investigate whether a consensus meeting affects the reliability.This was a single-blinded study of 12 experienced dermatologist raters counting AKs on the face and ears of nine subjects before and after a consensus meeting. Raters were recruited from investigators of a multicentre Veterans Affairs cooperative study. The intraclass correlation coefficient (ICC) among raters for pre- and post-consensus evaluations was the primary outcome measure.Of the four assessment methods, the 'total count' method had the greatest ICC for both pre- (0·18, P = 0·04) and post-consensus (0·66, P = < 0·0001) assessments. Total count was also the only pre-consensus ICC for which the null hypothesis of no association among assessments was rejected.Total AK count appears to be the most reliable measure of quantifying AKs on the face and ears. Educational consensus discussion prior to assessment improves reliability of this measure.
View details for DOI 10.1111/bjd.12591
View details for Web of Science ID 000327564200012
View details for PubMedID 24033340