Displaying results 1 - 3 of 3
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Visits with Nontyphoidal Salmonella Infections Reported to the BioSense System, 2006-2007
Content Type: Abstract
Biosurveillance systems typically receive free- text chief complaint and coded diagnosis data, however this data has limited specificity for notifiable disease surveillance. The Biosense System receives chief complaint and/or diagnosis data from… read more… a Category B bioterrorist agent. Objective To describe visits reported from BioSense hospitals with non-typhoidal … Visits with Nontyphoidal Salmonella Infections Reported to … Health Informatics, Atlanta, GA Objective To describe visits reported from BioSense hospitals with non-typhoidal … -
Performance Characteristics of Control Chart Detection Methods
Content Type: Abstract
To recognize outbreaks so that early interventions can be applied, BioSense uses a modification of the EARS C2 method, stratifying days used to calculate the expected value by weekend vs weekday, and including a rate-based method… read more… and including a rate-based method that accounts for total visits. These modifications produce lower residuals … and including a rate-based method that accounts for total visits (2). These modifications produce lower residuals … count vs rate methods, the latter accounting for total visits (i.e., both visits assigned and not assigned to a … -
Syndromic Prediction Power: Comparing Covariates and Baselines
Content Type: Abstract
The eleven syndrome classifications for clinical data records monitored by BioSense include rare events such as death or lymphadenitis and also common occurrences such as respiratory infections. BioSense currently uses two statistical methods for… read more… models: day-of-week, holiday, total daily health facility visits, and a trend variable (date). Models using different … data for this paper consisted of daily military clinical visit count data from the Department of Defense (DoD) for … of 28, 56, and 112 days were used to make one-day-ahead visit count predictions. For each forecast, the baseline …