Development and Validation of a Dermoscopic Severity Score for Female Pattern Hair Loss
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2021-01-01
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Introduction: Despite the high prevalence and impact on quality of life, there are no objective methods to estimate the severity of female pattern hair loss (FPHL). Here, we aimed to develop a dermoscopic severity score for FPHL. Methods: Cross-sectional study involving 76 women with FPHL and 12 controls. Standardized dermoscopic photos of the scalp were taken to evaluate the main findings of FPHL. The variable selection and their scores in the final model were defined by multivariate methods. Twenty participants were retested to assess the reliability, and 10 participants were tested before and after treatment for estimating its sensibility to change after 6 months. Results: Eight patients (11%) presented the Sinclair clinical scale grade I, 40 (53%) presented at grade II, 19 (25%) presented at grade III, and 9 (12%) presented at grades IV and V. In the multivariate exploration, the following variables were considered significant: total terminal hairs, total miniaturized hairs, brown peripilar sign, scalp honeycomb pigmentation, white peripilar sign, and yellow dots. The final model resulted in a high correlation (rho = 0.89) with the ranked clinical assessment. Conclusion: An objective and reliable severity score of FPHL was developed and validated, allowing its use as an additional outcome in therapeutic trials.
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Skin Appendage Disorders.
