JSM 2005 Online Program

Abstract #304365

This is the preliminary program for the 2005 Joint Statistical Meetings in Minneapolis, Minnesota. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2005); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

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Activity Number:	510
Type:	Topic Contributed
Date/Time:	Thursday, August 11, 2005 : 10:30 AM to 12:20 PM
Sponsor:	Section on Statisticians in Defense and National Security
Abstract - #304365
Title:	The impact of Time of Periods on Sensitivity and Specificity of Aberration Detection Methods
Author(s):	Lori Hutwagner*+ and Carol Knowles
Companies:	Centers for Disease Control and Prevention and Centers for Disease Control and Prevention
Address:	1600 Clifton Rd, Atlanta, GA, 30333, United States
Keywords:	aberration detection ; syndromic surveillance ; public health ; bioterrorism
Abstract:	As a result of the intentional and potential of a bioterrorist attack, investigating aberrations has been brought to the forefront of public health surveillance programs. There is concern that public health officials may become desensitized to aberrations due to the high probability for false positives and the financial and human resources necessary for epidemiologic investigations and followup. The objective of this paper is to determine if there is increase specificity when the data is aggregated and analyzed weekly versus daily. The same aberration detection methods were applied to simulated data that was generated daily. We collapsed the data into week categorizations using the MMWR week standard and then using the first through the seventh day and so. Then sensitivity, specificity, and time to detection were calculated for comparison.

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