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Displaying results 289 - 296 of 570
  • 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 …
  • Assessing and Optimizing the Accuracy of Physician Billing Claims for Use in Automated Syndromic Surveillance

    Content Type: Abstract

    To assess the accuracy of community-based physician claims for identifying 5 syndromes: fever, gastrointestinal, neurological, rash, and respiratory.
    … status (+/-), syn- drome type, syndrome ICD-9 code, and visit month (to avoid seasonal bias). The RAMQ then sent the … patient complaints, symptoms, and signs for each sampled visit. The sensitivity, specific- ity, and positive …
  • Emergency Department Data Quality Best Practices

    Content Type: Abstract

    Data quality for syndromic surveillance extends beyond validating and evaluating syndrome results. Data aggregators and data providers can take additional steps to monitor and ensure the accuracy of the data. In North Carolina,… read more
    … of data elements that should not change, i.e. time of visit, discharge disposition, etc. The aggregate trends monitored (for each hospital) include a) number of visits/day, b) percentage distributions for disposition, … acuity and insurance codes and c) percentage of visits that receive a diagnosis code, percentage that …
  • Automated Detection of GI Syndrome using Structured and Non-Structured Data from the VA EMR

    Content Type: Abstract

    Objective We performed a gold-standard manual chart review for gastro-intestinal syndrome to evaluate automated detection models based on both structured and non-structured data extracted from the VA … read more
    … METHODS We randomly sampled 15,377 of 253,818 outpatient visits to the VA Maryland Health Care system (VAMHCS) and … Additionally, we searched for documentation on the index visit day of fever > 37.8ºC. RESULTS The ESSENCE and … The NegEx algorithm for text-processing detected 2,338 visits with non-negated vomiting or diarrhea or abdominal …
  • A Case Manager Tool for Anomaly Investigation in BioSurveillance

    Content Type: Abstract

    Effective anomaly detection depends on the timely, asynchronous generation of anomalies from multiple data streams using multiple algorithms. Our objective is to describe the use of a case manager tool for combining anomalies into cases, and for… read more
    … of New Jersey include some 4.2 million records for ED visits to 24 hospitals in the New Jersey and New York, for the years 1996-2005. The record for each visit includes hospital, patient geography … the meningitis scare, the “Clinton” chest pain effect, ED visits related to possible anthrax exposure around October …
  • Using Syndromic Surveillance Data for Enhanced Case-Capture of Conditions of Public Health Interest

    Content Type: Abstract

    Syndromic surveillance can be a useful tool for the early recognition of outbreaks and trends in emergency department (ED) data. In addition, as a more timely data source than traditional disease reporting, syndromic data may also be… read more
    … from 8 hospitals. These data include: date and time of visit, age, zip code, chief complaint, mode of arrival, and … for the year 2006, representing 0.65% of all ED visits and an average of 7.9 ED visits to review per day. The most frequent conditions of …
  • Evaluation of Emergency Medical Text Processor for Pre-Processing Chief Complaint Data for Syndromic Surveillance

    Content Type: Abstract

    The goal of this project is to compare automated syn-dromic surveillance queries using raw chief complaints to those pre-processed with the Emergency Medical Text Processor (EMT-P) system.
    … data warehouse included 813,536 emergency department (ED) visits. The ED records are queried daily with 6 syndrome … METHODS This study analyzed a subset of the 1,000 ED visits which were previously sampled from the 2004 NC BEIPS … by two clinical experts who determined whether the visit met the ILI clinical case definition. Any …
  • Improving Negation Processing in Triage Notes

    Content Type: Abstract

    Emergency Department (ED) triage notes are clinical notes that expand upon the chief complaint, and are included in the AHIC minimum dataset for biosurveillance.1  Clinical notes can improve the accuracy of keyword-based syndromes but require… read more
    … a sample of NC DETECT records that included the 4432 ED visits with triage notes for 11/22/2006 and 11/23/2006. … G, Bamberger A, Friedman C. Fever Detection in Clinic Visit Notes Using a General Purpose Processor. Advances in …