期刊
DERMATOLOGIC SURGERY
卷 47, 期 4, 页码 522-525出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/DSS.0000000000002908
关键词
-
资金
- Allergan Aesthetics, an AbbVie company, Dublin, Ireland
Two scales, PR-SMFRS and PR-SMFIS, were developed and validated to measure the severity and psychological impact of submental fat (SMF) respectively, with acceptable psychometric properties. These instruments can reliably assess the severity and psychosocial impact of SMF and detect clinically meaningful change with intervention.
BACKGROUND No validated assessment tools are available to evaluate patient-reported outcomes specifically related to submental fat (SMF). OBJECTIVE To develop and validate scales measuring the severity (Patient-Reported SMF Rating Scale [PR-SMFRS]) and psychological impact (Patient-Reported SMF Impact Scale [PR-SMFIS]) of SMF. MATERIALS AND METHODS A literature review, content validation interviews (concept elicitation [n = 29] and cognitive debriefing [n = 15]) in adults with SMF, and expert interviews (n = 3) were conducted to develop the PR-SMFRS and PR-SMFIS. Psychometric validity (acceptability, reliability, and validity) for the PR-SMFRS and PR-SMFIS was assessed using data from 1 phase 2 and 5 phase 3 ATX-101 studies in patients with excess SMF. RESULTS The PR-SMFRS was constructed as a single-item, 5-point rating of the SMF amount/size. The PR-SMFIS was constructed as a 6-item scale, with an 11-point numeric rating for each item. Both scales demonstrated acceptable psychometric properties (test-retest reliability and internal consistency). The anchor-based minimally important difference analysis suggests a 1-point improvement on the PR-SMFRS (scale of 0-4) and a 3-point improvement on the PR-SMFIS (scale of 0-10) represent clinically meaningful change. CONCLUSION The PR-SMFRS and PR-SMFIS are reliable, valid instruments for assessing the severity and psychosocial impact, respectively, of SMF and detecting clinically meaningful change with intervention.
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