JSM 2004 Online Program

Abstract #302109

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Activity Number:	226
Type:	Contributed
Date/Time:	Tuesday, August 10, 2004 : 10:30 AM to 12:20 PM
Sponsor:	Biometrics Section
Abstract - #302109
Title:	Assessing Interobserver Variability in Laser Safety Research
Author(s):	Tzu-Cheg Kao*+ and Thomas Johnson
Companies:	Uniformed Services University of the Health Sciences and Uniformed Services University of the Health Sciences
Address:	4301 Jones Bridge Rd., Bethesda, MD, 20814-4799,
Keywords:	interobserver agreement ; Kappa coefficient ; risk ; laser injury
Abstract:	In a pre-clinical trial to assess safety in using laser instruments, three researchers independently evaluated the injury status of the skin. Three raters (#1-#3) participated in the evaluation and scoring process. The primary outcome, injury or no, was assessed. Measures were considered: Kappa coefficients, and the proportion of agreement. Either measure was to assess the agreement in injury scores. Results will be compared. Statistical issues related to the assessment of agreement will be discussed.

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