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Development and Validation of a Photonumeric Scale for Evaluation of Infraorbital Hollows
BACKGROUND: A validated scale is needed for objective and reproducible comparisons of infraorbital hollows (i.e., tear troughs) before and after treatment in practice and clinical studies. OBJECTIVE: To describe the development and validation of the 5-point photonumeric Allergan Infraorbital Hollows...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Lippincott Williams & Wilkins
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5671793/ https://www.ncbi.nlm.nih.gov/pubmed/27661748 http://dx.doi.org/10.1097/DSS.0000000000000856 |
Sumario: | BACKGROUND: A validated scale is needed for objective and reproducible comparisons of infraorbital hollows (i.e., tear troughs) before and after treatment in practice and clinical studies. OBJECTIVE: To describe the development and validation of the 5-point photonumeric Allergan Infraorbital Hollows Scale. METHODS: The scale was developed to include an assessment guide, verbal descriptors, morphed images, and real subject images for each grade. The clinical significance of a 1-point score difference was evaluated in a review of image pairs representing varying differences in severity. Interrater and intrarater reliability was evaluated in a live-subject validation study (N = 297) completed during 2 sessions occurring 3 weeks apart. RESULTS: A score difference of ≥1 point was shown to reflect a clinically significant difference (mean [95% confidence interval] absolute score difference, 0.90 [0.79–1.02] for clinically different image pairs and 0.33 [0.19–0.46] for not clinically different pairs). Intrarater agreement between the 2 validation sessions was substantial (mean weighted kappa = 0.79). Interrater agreement was substantial during the second rating session (0.70, primary end point). CONCLUSION: The Allergan Infraorbital Hollows Scale is a validated and reliable scale for physician rating severity of hollowing in the infraorbital area. |
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