Development and Validation of IBSA Photographic Scale for the Assessment of Inner Upper Arm Laxity
CLINICAL COSMETIC AND INVESTIGATIONAL DERMATOLOGY(2021)
摘要
Objective: To describe the development and validation of the 5-grade photographic IBSA inner upper arm scale. Methods: From 2 real-life pictures, a scale made up of 5 morphed images showing increasing severity of inner upper arm laxity was created. For validation, a set of 50 images (half of which real and the other morphed) was developed and sent to 5 trained physicians in two rounds 30 days apart. Raters' task was to make a selection of each image according to the given scale. Inter-rater and intra-rater reliability were evaluated in both rounds. Results: As to intra-rater reliability, single-rater kappa scores between 0.74 and 1.00 and a global kappa score of 0.846 were observed, while inter-rater agreement was calculated with intra-class correlation coefficient reporting scores higher than 0.91, which indicate excellent reliability. Conclusion: IBSA inner upper arm laxity scale proved to be a validated and reliable tool.
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关键词
photographic scale, upper inner arm, laxity, aesthetic medicine, scale validation, scale development
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