Displaying results 1 - 7 of 7
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Building an automated Bayesian case detection system
Content Type: Abstract
Current practices of automated case detection fall into the extremes of diagnostic accuracy and timeliness. In regards to diagnostic accuracy, electronic laboratory reporting (ELR) is at one extreme and syndromic surveillance is at… read more… immediate, and ELR is delayed 7 days from initial patient visit. A plausible solution, a middle way, to the extremes … UT, USA, on 1–2 December 2010. References 1 Que J, Tsui FC, Wagner MM. Timeliness study of radiology and … Symp Proc 2006; 1068. 2 Friedman C, Shagina L, Lussier Y, Hripcsak G. Automated encoding of clinical documents … -
Ellipse-Based Clustering Analysis Using a Time Series Algorithm
Content Type: Abstract
Many cities in the US and the Center for Disease Control and Prevention have deployed biosurveillance systems to monitor regional health status. Biosurveillance systems rely on algorithms that analyze data in temporal domain… read more… to normalize the counts (e.g., emergency department visits) within a geographic region. This paper presents … of Biosurveillance: Academic Press; 2006. 2. Tsui F-C, Espino JU, et. al. Key design elements of a data … web service model. Proc AMIA Symp 2005. 3. Zhang J, Tsui FC, Wagner MM, Hogan WR. Detection of out- breaks from time … -
A data simulation model using NRDM pharmaceutical sales counts
Content Type: Abstract
In disease surveillance, an outbreak is often present in more than one data type. If each data type is analyzed separately rather than combined, the statistical power to detect an outbreak may suffer because no single data source… read more… combined, the statistical power to detect an outbreak may suffer because no single data source captures all the … 2011, 4:s49. doi: 10.3134/ehtj.10.049 & 2011 J Que and F-C Tsui.; licensee Emerging Health Threats Journal. … surveillance. Stat Med 2007;26:1824–33. 2 Wagner MM, Tsui FC, Espino J, Hogan W, Hutman J, Hersh J. National Retail … -
Monitoring Pharmacy Retail Data for Anomalous Space-Time Clusters
Content Type: Abstract
Bio-surveillance systems monitor multiple data streams (over-the-counter (OTC) sales, Emergency Department visits, etc.) to detect both natural disease outbreaks (e.g. influenza) and bio-terrorist attacks (e.g. anthrax re-lease). Many detection… read more… (over-the-counter (OTC) sales, Emergency Department visits, etc.) to detect both natural disease outbreaks (e.g. … impressive results under simulated environments, but the com- plex behavior of real-world data and high costs asso- … bio-surveillance system. REFERENCES [1] Wagner MM, Tsui F-C, et al., A national retail data monitor for public … -
An automated influenza-like-illness reporting system using freetext emergency department reports
Content Type: Abstract
Current methods for influenza surveillance include laboratory confirmed case reporting, sentinel physician reporting of Influenza-Like-Illness (ILI) and chief-complaint monitoring from emergency departments (EDs). The current… read more… system using freetext emergency department reports F-C Tsui1, H Su1, J Dowling1, RE Voorhees2, JU Espino1, and … HK000063-01. References 1 Friedman C, Shagina L, Lussier Y, Hripcsak G. Automated encoding of clinical documents … area [online] 2009 cited. Available from: http://kdka.com/health/H1N1.flu.deaths. 2.1321133.html. Automated … -
Estimating the incidence of influenza cases that present to emergency departments
Content Type: Abstract
Our laboratory previously established the value of over-the-counter (OTC) sales data for the early detection of disease outbreaks. We found that thermometer sales (TS) increased significantly and early during influenza (flu) season.… read more… present to emergency departments R Villamarı́n, G Cooper, F-C Tsui, M Wagner, and J Espino Department of Biomedical … the following formula, which assumes that TS and ED visits are proportional to population size (pop) and that … of predicting outcomes that are related to flu ED visits based on TS. Our results suggest that the use of TS, … -
Challenges in adapting an natural language processing system for real-time surveillance
Content Type: Abstract
We are developing a Bayesian surveillance system for realtime surveillance and characterization of outbreaks that incorporates a variety of data elements, including free-text clinical reports. An existing natural language processing (… read more… real-time surveillance WW Chapman, M Conway, JN Dowling, F-C Tsui, Q Li, LM Christensen, H Harkema, T Sriburadej, and … Pittsburgh, PA, USA E-mail: wendy.w.chapman@gmail.com Objective Adapt an existing natural language processing … made changes to the NLP system using a development set of 26 laboratory- verified Shigellosis cases and 20 …