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Displaying results 1 - 8 of 12
  • Diagnosis Coding Anomalies Resulting in Hemorrhagic Illness Alerts in Veterans Health Administration Outpatient Clinics

    Content Type: Abstract

    The Veterans Health Administration (VHA) operates over 880 outpatient clinics across the nation. The Johns Hopkins Applied Physics Laboratory’s Electronic Surveillance System for the Early Notification of Community-Based Epidemics (ESSENCE) utilizes… read more
    … Epidemics (ESSENCE) utilizes VHA ICD9 coded outpatient visit data for the detection of abnormal patterns of disease … 0.03 HEMORRHAGIC COND NOS 287.9 48 0.07 DROP HEMATOCRIT PRECIP 790.01 71 0.10 HEMOLYTIC UREMIC SYND 283.11 209 0.29 … tools in order to promote more accurate outpatient coding may improve the performance of the HI detection model. …
  • A Simple Method of Using Linked Health Data in Syndromic Surveillance

    Content Type: Abstract

    This paper describes a simple technique for utilizing linked health information in syndromic surveillance. Using knowledge of which patient encounters resulted in laboratory test requests and prescriptions may improve sensitivity and specificity of… read more
    … resulted in laboratory test requests and prescriptions may improve sensitivity and specificity of detection … of linked lab requests and prescriptions filled for each visit. This tally ranged from zero to greater than 9 and was … ratio [1] for this event increased by about 26% as the severity linkage score filtering increased from …
  • The Development of Virtual Data for Syndromic Surveillance Exercises

    Content Type: Abstract

    On 27 April 2005, a simulated bioterrorist event—the aerosolized release of Francisella tularensis in the men’s room of luxury box seats at a sports stadium—was used to exercise the disease surveillance capability of the National Capital Region (NCR… read more
    … requirements and represented both ‘normal’ endemic visits (the background) as well as outbreak-specific records … requirements and represented both ‘normal’ endemic visits (the background) as well as outbreak-specific records … create the background data, emergency depart- ment (ED) visits were generated for each political unit in the NCR. ED …
  • Super Bowl Surveillance: A Practical Exercise in Inter-Jurisdictional Public Health Information Sharing

    Content Type: Abstract

    When the Chicago Bears met the Indianapolis Colts for Super Bowl XLI in Miami in January, 2007, fans from multiple regions visited South Florida for the game. In the past, public health departments have instituted heightened… read more
    … XLI in Miami in January, 2007, fans from multiple regions visited South Florida for the game. In the past, public … XLI in Miami in January, 2007, fans from multiple regions visited South Florida for the game. In the past, public … XLI in Miami in January, 2007, fans from multiple regions visited South Florida for the game. In the past, public …
  • Linking Public Health and Healthcare Data for Syndromic Surveillance

    Content Type: Abstract

    A number of syndromic surveillance systems include tools that quickly identify potentially large disease outbreak events. However, the high falsepositive rate continues to be a problem in all of these systems. Our earlier work… read more
    … anomalous health event that presents as only a few cases may remain undetected because the chief complaint data does … Submitted by elamb on Tue, 03/26/2019 - 16:22 … Linking Public Health and Healthcare Data … in the patient encounter dataset, same day office visits corresponded well with the flu epidemic curve. …
  • Using Cloud Technology to Support Monitoring During High Profile Events

    Content Type: Abstract

    Hospital emergency departments in Cook and surrounding counties currently send data to the Cook County Department of Public Health (CCDPH) instance of ESSENCE on CCDPH servers. The cloud instance of ESSENCE has been enhanced to receive and export… read more
    … to the Cook County Locker in BioSense 2.0. Objective In May 2012, thousands of protesters, descended on Chicago … to the Cook County Locker in BioSense 2.0. Objective In May 2012, thousands of protesters, descended on Chicago …
  • Synthesizing the American Health Information Community’s Minimum Data Set

    Content Type: Abstract

    One of the challenges facing developers and users of automated disease surveillance systems is being able to accurately evaluate the performance of their systems for the wide variety of public health threats that are possible. A… read more
    … outbreaks are typically not public health emergencies and may not represent signals of interest. Another approach is … breaks are typically not public health emergencies and may not represent signals of interest. Another approach is … identifying features. Additional synthetic outbreak cases may be inserted into the real but modified background AHIC …
  • Classification of Emergency Department Syndromic Data for Seasonal Influenza Surveillance

    Content Type: Abstract

    We evaluated several classifications of emergency department (ED) syndromic data to ascertain best syndrome classifications for ILI.
    … for classification of syndromic data for tracking ILI may differ regionally, so previously pub- lished study … and excluded one hospital that did not provide ED chief com- plaints. The weekly number of positive viral cultures … with ED data. We used 6 classifications of ILI ED visit data for this analysis: (1) A chief complaint with …