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Two-point scoring method for the evaluation of pattern hair loss by phototrichogram using a headband and a tapeline

Authors
 Si‐Hyung Lee  ;  Jin‐Soo Kang  ;  In Kyung Jeon  ;  Hye Sun Lee  ;  Sung Bin Cho 
Citation
 SKIN RESEARCH AND TECHNOLOGY, Vol.19(2) : 183-188, 2013 
Journal Title
SKIN RESEARCH AND TECHNOLOGY
ISSN
 0909-752X 
Issue Date
2013
MeSH
Adult ; Alopecia/diagnosis* ; Dermoscopy/instrumentation* ; Dermoscopy/methods ; Equipment Design ; Equipment Failure Analysis ; Female ; Fiducial Markers* ; Humans ; Image Enhancement/instrumentation ; Image Interpretation, Computer-Assisted/methods* ; Male ; Observer Variation ; Photography/instrumentation* ; Photography/methods ; Reproducibility of Results ; Sensitivity and Specificity ; Severity of Illness Index
Abstract
BACKGROUND: A phototrichogram scalp measurement method using a headband and a tapeline was introduced as a non-invasive and economical measuring technique.

OBJECTIVE: To evaluate the reliability and reproducibility of the two-point scoring method by phototrichogram using a headband and a tapeline.

METHODS: The scalp hair of seven volunteers were measured in triplicate at the 'P' and 'V' points by three dermatologists. To calculate the degree of disease progression, we used a two-point ('P' point and 'V' point) scoring method. Statistical analyses for the evaluation of inter- and intra-investigator reliability and variability were performed.

RESULTS: Overall intraclass correlation coefficients (ICCs) of intra-investigator reliability demonstrated ICCs with excellent agreement for all parameters, including the number and thickness of hair at the 'P' and 'V' points, as well as calculated degree of disease progression. ICCs of inter-investigator reliability demonstrated ICCs with excellent agreement in all parameters, except mean hair thickness at the 'P' point. Overall intra-investigator variability demonstrated coefficients of variation (CVs) ranging from 2.6% to 9.8%, whereas inter-investigator variability demonstrated CVs ranging from 2.9% to 6.3%.

CONCLUSION: We suggest that a two-point scoring using our method is a non-invasive and economical measurement technique with high reliability and reproducibility.
Full Text
https://onlinelibrary.wiley.com/doi/abs/10.1111/srt.12031
DOI
10.1111/srt.12031
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Dermatology (피부과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Lee, Si Hyung(이시형)
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
Jeon, In Kyung(전인경)
Cho, Sung Bin(조성빈)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/158519
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