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 … -
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 … -
SyCo: A Probabilistic Machine Learning Method for Classifying Chief Complaints into Symptom and Syndrome Categories
Content Type: Abstract
Scientists have utilized many chief complaint (CC) classification techniques in biosurveillance including keyword search, weighted keyword search, and naïve Bayes. These techniques may utilize CC-to-syndrome or CC-… read more… keyword search, and naïve Bayes. These techniques may utilize CC-to-syndrome or CC-to-symptom-to-syndrome … keyword search,3 and naïve Bayes.4 These techniques may utilize CC-to-syndrome or CC-to-symptom-to-syndrome … keyword search, and naïve Bayes. These techniques may utilize CC-to-syndrome or CC-to-symptom-to-syndrome … -
Data quality in federated disease surveillance: using variability as an indicator of quality
Content Type: Abstract
Most, if not all, disease surveillance systems are federated in the sense that hospitals, doctors’ offices, pharmacies are the source of most surveillance data. Although a health department may request or mandate that these… read more… of most surveillance data. Although a health department may request or mandate that these organizations report data, … of most surveillance data. Although a health depart- ment may request or mandate that these organizations report data, … of most surveillance data. Although a health department may request or mandate that these organizations report data, …