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Displaying results 345 - 352 of 449
  • The NGram CC Classifier: A Novel Method of Automatically Creating CC Classifiers Based on ICD9 Groupings

    Content Type: Abstract

    Syndromic surveillance of emergency department (ED) visit data is often based on computer algorithms which assign patient chief complaints (CC) to syndromes. ICD9 code data may also be used to develop visit classifiers for syndromic surveillance but… read more
    … visits). We used as our ICD9 classifier an existing ESSENCE filter for “lower GI” modified by removing …
  • Ehrlichiosis v1

    Content Type: Syndrome

    Query purpose: Created by the CDC National Syndromic Surveillance Program (NSSP) for use with emergency department data to develop queries for all National Notifiable Diseases defined by the National Notifiable Diseases… read more
    … terms. These terms were formatted for querying in ESSENCE. Text analysis was conducted on the initial query to … New or Revised Definition: New Definition Date Added to ESSENCE: July 2025 Definition Description: Designed to … terms. These terms were formatted for querying in ESSENCE. Text analysis was conducted on the initial query to …
  • Giardiasis v1

    Content Type: Syndrome

    Query purpose: Created by the CDC National Syndromic Surveillance Program (NSSP) for use with emergency department data to develop queries for all National Notifiable Diseases defined by the National Notifiable Disease… read more
    … terms. These terms were formatted for querying in ESSENCE. Text analysis was conducted on the initial query to … New or Revised Definition: New Definition Date Added to ESSENCE: February 2025 Definition Description: Designed to … Chief Complaint Query Validation dataset (CCQV) in ESSENCE. Development Methods: 1. The CDC team used the NNDSS …
  • Hantavirus Infection v1

    Content Type: Syndrome

    Query purpose: Created by the CDC National Syndromic Surveillance Program (NSSP) for use with emergency department data to develop queries for all National Notifiable Diseases defined by the National Notifiable Diseases… read more
    … terms. These terms were formatted for querying in ESSENCE. Text analysis was conducted on the initial query to … New or Revised Definition: New Definition Date Added to ESSENCE: February 2025 Definition Description: Designed to … Chief Complaint Query Validation dataset (CCQV) in ESSENCE. Development Methods: 1. The CDC team used the NNDSS …
  • Brucellosis v1

    Content Type: Syndrome

    Query purpose: Created by the CDC National Syndromic Surveillance Program (NSSP) for use with emergency department data to develop queries for all National Notifiable Diseases defined by the National Notifiable Disease… read more
    … terms. These terms were formatted for querying in ESSENCE. Text analysis was conducted on the initial query to … New or Revised Definition: New Definition Date Added to ESSENCE: February 2025 Definition Description: Designed to … Chief Complaint Query Validation dataset (CCQV) in ESSENCE. Development Methods: 1. The CDC team used the NNDSS …
  • Syndromic Surveillance Signal Investigation in Los Angeles County

    Content Type: Abstract

    In the fall of 2001, the Bioterrorism Preparedness and Response (BT P&R) Unit initiated a syndromic surveillance system utilizing chief complaint data collected from Emergency Departments throughout Los Angeles County (LAC). Chief complaint data… read more
    … (i.e., Terrorism Early Warning Group, Pro-Med, Epi-X, ESSENCE, BioSense, ReddiNet®, VCMR, Outbreak log, coroner …
  • Using NLP on VA Electronic Medical Records to Facilitate Epidemiologic Case Investigations

    Content Type: Abstract

    A major goal of biosurveillance is the timely detection of an infectious disease outbreak. Once a disease has been identified, another very important goal is to find all known cases of the disease to assist public health… read more
    … the first stage, we used structured data and BioSense and ESSENCE ICD 9 codes on records during the study period …
  • Utilizing Emergency Department Data to Evaluate Primary Care Clinic Hours

    Content Type: Abstract

    In addition to utilizing syndromic surveillance data to respond to public health threats and prepare for major incidents, local health departments can utilize the data to examine patient volumes in the emergency departments (EDs) of… read more
    … hours’ impact on ED use. METHODS All 2007 ED visits from ESSENCE for the urban public hospital were analyzed for …