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Displaying results 1 - 8 of 8
  • Analytic Biosurveillance Methods for Resource-Limited Settings

    Content Type: Abstract

    Biosurveillance in resource-limited settings is essential because of both enhanced risk of diseases rarely seen elsewhere (e.g. cholera) and pandemic threats (e.g. avian influenza). However, access to care and laboratory test capability are… read more
    … of syndromic surveillance. Such surveillance in turn may be a challenge because of insufficient data history and … has the added complication that day-of-week clinical visit patterns differ widely, (e.g. clinic closure on … has the added complication that day-of-week clinical visit patterns differ widely, (e.g. clinic closure on …
  • Analytic Fusion of ESSENCE Clinical Evidence Sources for Routine Decision Support

    Content Type: Abstract

    Block 3 of the US Military Electronic Surveillance System for Early Notification of Community-Based Epidemics (ESSENCE) system affords routine access to multiple sources of data. These include administrative clinical encounter records in the… read more
    … and others. CAPER records include a free-text Reason for Visit field, analogous to chief complaint text in civilian … and others. CAPER records include a free-text Reason for Visit field, analogous to chief complaint text in civilian … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • A Term-based Approach to Asyndromic Determination of Significant Case Clusters

    Content Type: Abstract

    Biosurveillance systems commonly depend on free-text chief complaints (CC)s for timely situational awareness. However, diagnosis codes may not be available soon enough and may have uncertain value because they are assigned for billing purposes… read more
    … timely situational awareness. However, diagnosis codes may not be available soon enough and may have uncertain value because they are assigned for … timely situational awareness. However, diagnosis codes may not be available soon enough and may have uncertain …
  • Tuning a Chief Complaint Text Parser for Use in DoD ESSENCE

    Content Type: Abstract

    An expanded ambulatory health record, the Comprehensive Ambulatory Patient Encounter Record (CAPER) will provide multiple types of data for use in DoD ESSENCE. A new type of data not previously available is the Reason for Visit (ROV), a free-text… read more
    … type of data not previously available is the Reason for Visit (ROV), a free-text field analogous to the Chief … CC Yes CC No Ratio CC only to ICD only ILI before ICD Y 194,957 1,382,852 0.6 ICD N 762,842 38,904,014 ILI after … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Hierarchical Filtering of ESSENCE for Routine, Distributed Disease Monitoring by the Veterans Health Administration

    Content Type: Abstract

    The VA has employed ESSENCE for health monitoring since 2006 [1]. Epidemiologists at the Office of Public Health (OPH) monitor the VA population at the national level. The system is also intended for facility-level monitoring to cover 152 medical… read more
    … the group of monitors using ESSENCE. Signals of interest may be masked by the nationwide alert burden. Customized … doi:10.1371/journal. pone.0009533. 2. Burkom H, Elbert Y, Cox K, Lombardo J. Upgrading the ESSENCE health … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Evaluation of Alerting Sparse-Data Streams of Population Healthcare-Seeking Data

    Content Type: Abstract

    Objective This presentation discusses the problem of detecting small-scale events in biosurveillance data that are relatively sparse in the sense that the median count of monitored time series values is zero. Research goals are to understand… read more
    … but little on the monitoring of sparse series. Literature may be found in statistical process control applied to … streams were small-scale series of 1400 days of daily visit counts in 20 syndromic categories. The simulated data …
  • Development and Evaluation of a Data-adaptive Algorithm for Univariate Temporal Biosurveillance Data

    Content Type: Abstract

    Numerous recent papers have evaluated algorithms for biosurveillance anomaly detection. Common essential problems in the disparate, evolving data environment include trends, day-of-week effects, and other systematic behavior.… read more
    … of authentic outpatient data covering 1402 days of clinic visit counts. Receiver operating characteristic curves were … in Medicine, available at http://www3.interscience.wiley.com/cgi- bin/fulltext/114131913/PDFSTART. 2. Brillman JC, et.al. Modeling emergency department visit patterns for infectious disease complaints: results …
  • Utility of Syndromic Surveillance for Investigating Morbidity Resulting from a Severe Weather Event

    Content Type: Abstract

    On 12/14/06, a windstorm in western Washington caused 4 million residents to lose power; within 24 hours, a surge in patients presented to emergency departments (EDs) with carbon monoxide (CO) poisoning. As previously described, records of… read more
    … our syndromic surveillance system captured 16,982 ED visits. Most of the 169 ED patients with CO-related illness …