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Displaying results 1 - 8 of 9
  • 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. …
  • Inpatient Data: A New Frontier in VA Biosurveillance and Public Health Monitoring from the Electronic Health Record

    Content Type: Abstract

    The Veterans Affairs (VA) ESSENCE obtains electronic health record data from 152 medical centers plus clinics in all 50 states, U.S. territories, and the Philippines. ESSENCE analyzes ICD-9 diagnosis codes and demographic data from outpatient and… read more
    … demographic data from outpatient and emergency department visits using complex aberrancy-detection algorithms. In … data from outpatient and emergency department (ED) visits using complex aberrancy-detection algorithms (1). In … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …
  • Adapting a syndromic biosurveillance system to monitor veterans’ health impact associated with the gulf coast oil spill

    Content Type: Abstract

    On 20 April 2010, an explosion on an offshore drilling rig in the Gulf of Mexico led to a prolonged uncontrolled release of crude oil. Both clean-up workers and coastal residents were potentially at high risk for respiratory and other… read more
    … (ESSENCE). ESSENCE captures specific patient care visit ICD-nine codes belonging to selected conditions that … identified. The ICD-nine codes resulting from patient visits to 34 VA coastal emergency departments and outpatient … detected by ESSENCE at 34 VA gulf coast facilities, 26 June–28 August, 2010 State Syndrome Dates Sustained? …
  • Carbon Monoxide Poisoning in the Veterans Health Administration, 2010 - 2016

    Content Type: Abstract

    It is estimated that in the United States (US), unintentional non-fire related CO poisoning causes an average of 439 deaths annually, and in 2007 confirmed CO poisoning cases resulted in 21,304 ED visits and 2,302 hospitalizations (71 per million… read more
    … 2007 confirmed CO poisoning cases resulted in 21,304 ED visits and 2,302 hospitalizations (71 per million and 8 per … 2007 confirmed CO poisoning cases resulted in 21,304 ED visits and 2,302 hospitalizations (71 per million and 8 per …
  • Another Type of Cluster Monitoring: Detection of Groups of Anomalous Patient Residence Locations

    Content Type: Abstract

    The Veterans Health Administration (VHA) uses the Electronic Surveillance System for the Early Notification of Community-based Epidemics to detect disease outbreaks and other health-related events earlier than other forms of surveillance. Although… read more
    … than other forms of surveillance. Although Veterans may use any VHA facility in the world, the strongest … by ICD-9 code and chart review), date and location of visit and patients’ zip code of residence. We also accessed … were evaluated for flu symptoms. (The alert on July 26, 2009, was a part of this same outbreak.) Using this …
  • Enhanced Influenza Surveillance using Telephone Triage Data in the VA ESSENCE Biosurveillance System

    Content Type: Abstract

    Telephone triage is a relatively new data source available to biosurveillance systems.1-2Because early detection and warning is a high priority, many biosurveillance systems have begun to collect and analyze data from non-traditional sources [… read more
    … searches (e.g. Google Flu Trends) and TT]. These sources may provide disease activity alerts earlier than … searches (e.g. Google Flu Trends) and TT]. These sources may provide disease activity alerts earlier than …
  • 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 …
  • Acute Hepatitis A Infections among Veterans in Outbreak States, 2016-2018

    Content Type: Abstract

    Although cases of acute HAV have declined in recent years, elevated numbers of HAV infections began to be reported by California and Michigan in the fall of 2016.1,2 Since this time, associated outbreaks have been reported in 9 additional states (… read more
    … review our HAV surveillance, to identify Veterans who may be part of these outbreaks, and assess risk factors and … review our HAV surveillance, to identify Veterans who may be part of these outbreaks, and assess risk factors and …