Displaying results 1 - 7 of 7
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Google Flu Trends: Correlation with Emergency Department Influenza Rates and Crowding Metrics
Content Type: Abstract
Emergency Departments (ED) supply critical infrastructure to provide medical care in the event of a disaster or disease outbreak, including seasonal and pandemic influenza [1]. Already over-crowded and stretched to near-capacity, influenza activity… read more… use of traditional surveillance systems has been limited due to the several week lag associated with reporting, new … use of traditional surveillance systems has been limited due to the several week lag associated with reporting, new … 2. Glaser CA, Gilliam S, Thompson WW, Dassey DE, Waterman SH, Saruwatari M, et al. Medical care capacity … -
Reducing the Delay in Detecting an Influenza Epidemic with More Sensitive Case Detection Algorithms
Content Type: Abstract
Measures aimed at controlling epidemics of infectious diseases critically benefit from early outbreak recognition [1]. SSS seek early detection by focusing on pre-diagnostic symptoms that by themselves may not alarm clinicians. We have previously… read more… (8) real-world SSS datasets of Baltimore VA patients i.e. raw or background- substracted daily counts of ILI cases given by 4 dif- ferent CD algorithms during a typical one-year period … of ≤ 0.001. To address changes in detection delays due to the seasonal variations in ILI, epidemic … -
Text-Processing of VA Clinical Notes to Improve Case Detection Models for Influenza-like Illness
Content Type: Abstract
Objective There were two objectives of this analysis. First, apply text-processing methods to free-text clinician notes extracted from the VA electronic medical record for automated detection of Influenza-Like-Illness. Secondly,… read more… an explicit definition of ILI. Following chart review all electronic notes for positive cases and a random sample of all negative cases (N=2,414 cases ) were selected for … or more VAMHCS 197 ICD-9 codes 79 (74,84) 97 (96,98) 31 (26,36) 88 (85,90) 2. Model 1 OR expectorant 84 (79,88) 95 … -
Automated Surveillance To Detect An Influenza Epidemic: Which Respiratory Syndrome Should We Monitor?
Content Type: Abstract
OBJECTIVE Syndromic surveillance systems (SSS) seek early detection of infectious diseases outbreaks by focusing on pre-diagnostic symptoms. We do not yet know which respiratory syndrome should be monitored for a SSS to discover… read more… an influenza epidemic using a SSS that targets either (1) all cases of acute respiratory infections (ARI) or (2) only … an influenza epidemic using a SSS that targets either (1) all cases of acute respira- tory infections (ARI) or (2) … then used a modified CUSUM statistic daily for 50 days to de- tect the outbreak. This injection/prospective- … -
Identifying Contextual Features to Improve the Performance of an Influenza-Like Illness Text Classifier
Content Type: Abstract
To understand the types of false positive cases identified by an Influenza-like illness (ILI) text classifier by measuring the prevalence of ILI-related concepts that are negated, hypothetical, include explicit mention of temporality, experienced by… read more… note documents. False positive extractions may be due to concepts in the text being assigned to the patient … -
Using the Electronic Medical Record to Reduce both the Delay and the Workload Required to Detect and Influenza Epidemic
Content Type: Abstract
Measures aimed at controlling epidemics of infectious diseases critically benefit from early outbreak recognition. Through a manual electronic medical record (EMR) review of 5,127 outpatient encounters at the Veterans… read more… but delay to the first true positive alert (open circles) did not. Right panel. CDAs with increased positive … -
Stakeholder Perspectives of Biosurveillance: a Qualitative Analysis
Content Type: Abstract
For more than a decade, biosurveillance systems (and more recently BioSense) have been employed in the United States. Efforts to drastically expand these surveillance capacities have been a national priority given concerns … read more… and analyzing data. This qualitative analysis focused on all biosurveillance stakeholders and the opportunity to … and analyzing data. This qualitative analysis focused on all biosurveillance stakeholders and the opportunity to … in the 1990’s regarding risk for diarrheal illnesses (i.e., cryptosporidiosis), while Baltimore began its efforts …