Development and Validation Clinician and Patient Reported Photonumeric Scales to Assess Buttocks Cellulite Severity. Issue 12 (December 2020)

• Record Type: Journal Article
• Authors: Cohen, Joel L.; Sadick, Neil S.; Kirby, M. Todd; McLane, Michael P.; Lenderking, William R.; Bender, Randall H.; Chen, Jun; Hurley, David; Knoble, Naomi B.; Liu, Genzhou; Xiang, Qinfang; Davidson, Jeffrey A.; Goldman, Mitchel P.
• Is Part Of: Dermatologic surgery. Volume 46:Issue 12(2020)
• Publication Date: 2020-12
• Subjects: Skin -- Surgery -- Periodicals; Skin -- Diseases -- Surgery -- Periodicals; 617.477
• DOI: 10.1097/DSS.0000000000002756
• Languages: English
• ISSNs: 1076-0512

Abstract

Abstract : BACKGROUND: The Clinician Reported Photonumeric Cellulite Severity Scale (CR-PCSS) and Patient Reported PCSS (PR-PCSS) are newly developed tools for assessing cellulite severity. OBJECTIVE: To report on the reliability, validity, and ability to detect a change in cellulite severity on the buttocks of adult women with the CR-PCSS and PR-PCSS. MATERIALS AND METHODS: Content validity of both scales was established through concept elicitation and cognitive interviews. Test–retest reliability was evaluated, and intra-rater (both scales) and inter-rater (CR-PCSS only) reliability were estimated using intraclass correlation coefficients (ICCs) for agreement and consistency. Ability to detect a change was determined using the Subject–Global Aesthetic Improvement Scale (GAIS) or Investigator-GAIS as anchors. RESULTS: For the CR-PCSS ( n = 6) at baseline and Day 2, the mean interrater ICCs were ≥0.70 and mean intrarater ICCs (95% confidence interval [CI]) were ≥0.81 (0.72–0.90) for both buttocks. For the PR-PCSS ( n = 99) at baseline and Day 14, the mean test–retest reliability ICCs (95% CI) were ≥0.86 (0.79–0.91) for both buttocks. A clinically meaningful change was 1.0 point on the PR-PCSS and 1.0 on the CR-PCSS. CONCLUSION: The CR-PCSS and PR-PCSS reliably assess cellulite severity of the buttocks and can detect a clinically meaningful change after treatment for cellulite. Abstract : Supplemental Digital Content is Available in the Text.