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Development and validation of ibsa photographic scale for the assessment of inner upper arm laxity

  • Daniel Cassuto
  • , Giovanni Pellacani
  • , Antonello Tateo
  • , Ofir Artzi
  • , Fabio Massimo Ingallina
  • , Giovanni Salti
  • , Elena Rossi
  • , Arturo Lanzarotti
  • , Malika Laouedj
  • , Nicolas Dapis
  • , Gilberto Bellia*
  • *Corresponding author for this work
  • Private Practice
  • University of Modena and Reggio Emilia
  • Tel Aviv Sourasky Medical Center
  • Private Practice
  • Private Practice
  • IBSA Institut Biochimique SA
  • Quantificare SA
  • IBSA Farmaceutici Italia Srl

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)1465-1471
Number of pages7
JournalClinical, Cosmetic and Investigational Dermatology
Volume14
DOIs
StatePublished - 2021
Externally publishedYes

Funding

Funders
IBSA Farmaceutici Italia

    Keywords

    • Aesthetic medicine
    • Laxity
    • Photographic scale
    • Scale development
    • Scale validation
    • Upper inner arm

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