Measuring the Severity of Infantile Hemangiomas Instrument Development and Reliability

Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Archives of dermatology (Impact Factor: 4.31). 02/2012; 148(2):197-202. DOI: 10.1001/archdermatol.2011.926
Source: PubMed

ABSTRACT To develop instruments that measure the severity of infantile hemangiomas (Hemangioma Severity Scale [HSS]) and the complications of infantile hemangiomas for longitudinal use (Hemangioma Dynamic Complication Scale [HDCS]).
Instrument development and reliability study.
Academic research.
The HSS and the HDCS were developed through the collaborative effort of members of the Hemangioma Investigator Group Research Core, an expert multi-institutional research group. After development of the scales, 13 pediatric dermatologists used the HSS to score 20 different hemangiomas. In addition, 12 pediatric dermatologists used the HDCS to score hemangioma-related complications for 24 clinical scenarios. Interrater and intrarater reliability was measured for both scales.
Interrater and intrarater reliability.
For the HSS, interrater reliability and intrarater reliability exceeded 99%. Similarly, the HDCS had a high rate of interrater agreement; for individual items, agreement among raters was 67% to 100%, with most clinical scenarios demonstrating greater than 90% agreement. Intrarater reliability was excellent for all individual items of the HDCS.
The HSS and the HDCS are reliable scales that can be used to measure the severity of infantile hemangiomas, including the severity of complications for longitudinal use.

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