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Displaying results 1 - 8 of 10
  • 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 …
  • Increase in Pneumonia Cases as an Early Indicator of Severe and Pandemic Influenza Outbreak

    Content Type: Abstract

    Objective To enable the early detection of pandemic influenza, we have designed a system to differentiate between severe and mild influenza outbreaks. Historic information about previous pandemics suggested the evaluation of two… read more
    … and can be diagnosed immediately in a physician office visit, while a confirmed influenza diagnosis requires a … and can be diagnosed immediately in a physician office visit, while a confirmed influenza diagnosis requires a … and can be diagnosed immediately in a physician office visit, while a confirmed influenza diagnosis requires a …
  • 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
    … 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 …
  • Defining Clinical Condition Categories for Biosurveillance

    Content Type: Abstract

    The goal of this project is to create a set of clinical condition categories based on explicit criteria for use in biosurveillance programs. The categories will be defined and keywords and ICD-9-CM diagnosis codes for implementation will be proposed.
    … to local preferences. However, this disparity may also hinder comparison of biosurveillance data from different … nationally notifiable infectious diseases; 3) reasons for visit from CDC’s Hurricane Morbidity Report Form for Active …
  • 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
    … scenario realism. RESULTS A total of 2,623,226 background visit records were generated for the exercise. The … between 4/5- 5/3/05. Those infected generated 3050 ED visit re- cords, 106 military office visit records, and 2627 sales of OTC medication at 23 …
  • Modeling Disease Surveillance and Assessing its Effectiveness for Detection of Acute Respiratory Outbreaks in Resource-Limited Settings

    Content Type: Abstract

    A U.S. Department of Defense program is underway to assess health surveillance in resource-poor settings and to evaluate the Early Warning Outbreak Reporting System. This program has included several information-gathering trips,… read more
    … uses health and census data collected during the 2006 Lao visit and incorporates features of recently published agent- … Scenarios investigated were derived from the Lao site visit--the gain from adding EWORS capability in strategic …
  • 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.
    … 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 …