Development and Validation of IBSA Photographic Scale for the Assessment of Inner Upper Arm Laxity

To describe the development and validation of the 5-grade photographic IBSA inner upper arm scale. 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 mo...

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Bibliographic Details
Published in:Clinical, cosmetic and investigational dermatology cosmetic and investigational dermatology, 2021-01, Vol.14, p.1465-1471
Main Authors: Cassuto, Daniel, Pellacani, Giovanni, Tateo, Antonello, Artzi, Ofir, Ingallina, Fabio Massimo, Salti, Giovanni, Rossi, Elena, Lanzarotti, Arturo, Laouedj, Malika, Dapis, Nicolas, Bellia, Gilberto
Format: Article
Language:English
Subjects:
Accuracy
aesthetic medicine
Arms
Confidence intervals
laxity
Medical screening
Original Research
photographic scale
scale development
scale validation
Skin
Software
upper inner arm
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Summary:To describe the development and validation of the 5-grade photographic IBSA inner upper arm scale. 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. 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. IBSA inner upper arm laxity scale proved to be a validated and reliable tool.
ISSN:1178-7015
1178-7015
DOI:10.2147/CCID.S317857