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Displaying results 1 - 8 of 8
  • 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 … Epidemics (ESSENCE) utilizes VHA ICD9 coded outpatient visit data for the detec- tion of abnormal patterns of … Epidemics (ESSENCE) utilizes VHA ICD9 coded outpatient visit data for the detection of abnormal patterns of disease …
  • 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 … scenario realism. RESULTS A total of 2,623,226 background visit records were generated for the exercise. The …
  • 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
    … streams (emergency department chief complaints, clinic visit International Classification of Disease Ninth Revi- … who were assigned certain ICD9 codes during an office visit also received specific laboratory requests and … of linked lab requests and prescriptions filled for each visit. This tally ranged from zero to greater than 9 and was …
  • The Tradeoffs Driving Policy and Research Decisions in Biosurveillance

    Content Type: Abstract

    Every public health monitoring operation faces important decisions in its design phase. These include information sources to be used, the aggregation of data in space and time, the filtering of data records for required… read more
    … alerting methods, we used 3 years of outpatient clinic visit data in which records were classified by syndrome and …
  • 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.
    … with ED data. We used 6 classifications of ILI ED visit data for this analysis: (1) A chief complaint with …
  • Translational Research for Surveillance

    Content Type: Presentation Slides

    Presented January 28, 2008 The following presentation was given as part of the Integrated Surveillance Seminar Series from the National Center for Public Health Informatics and provides an overview of public health informatics… read more
    … Medical Records for Public Health Situational Awareness Phone Triage Chief Complaint ICD-9 & CPT Codes Clinic Notes … Case Specific Surveillance in a Collaborative Environment Phone Triage Chief Complaint ICD-9 & CPT Codes Clinic Notes …
  • Evaluating Pandemic Influenza Surveillance and Response Systems in Developing Countries: Framework and Pilot Application

    Content Type: Abstract

    A pandemic caused by influenza A/H5N1 or another novel strain could kill millions of people and devastate economies worldwide. Recent computer simulations suggest that an emerging influenza pandemic might be contained in Southeast Asia through rapid… read more
    … questionnaires provided to system operators and site visits. We will develop recommen- dations for system …
  • 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
    … in the patient encounter dataset, same day office visits corresponded well with the flu epidemic curve. …