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Displaying results 1 - 8 of 8
  • A Comparison of Ambulatory Care and Emergency Department Encounters as Data Sources for Detection of Clusters of Lower Gastrointestinal Illness

    Content Type: Abstract

    We sought to compare ambulatory care (AC) and emergency department (ED) data for the detection of clusters of lower gastrointestinal illness, using AC and ED data and AC+ED data combined, from two geographically separate health plans participating… read more
    … We sought to compare ambulatory care (AC) and emergency department (ED) data for the … A Comparison of Ambulatory Care and Emergency Department Encounters as Data Sources for … We sought to compare ambulatory care (AC) and emergency department (ED) data for the …
  • Nurse Call Data for Detection of Influenza-Like Illness

    Content Type: Abstract

    Influenza affects millions of people and causes about 36,000 deaths in the United States each winter. Pandemics of influenza emerge at irregular intervals. National influenza surveillance is used to detect the emergence and spread of influenza virus… read more
    … created as part of the routine delivery of medical care might supplement current data sources. Nurse call data … people with ILI may call a nurse line before seeking care at a health-care facility and because the data are more timely than … Harmon,3 Richard Platt,1 1 Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard …
  • The SAS/SaTScan Macro Accessory for Cartography (SMAC) Package

    Content Type: Abstract

    SaTScan is a program often used for space-time cluster detection. In order to run SaTScan, the data must be in a pre-specified text format. Once the input files are in the correct format, the typical user opens SaTScan, chooses… read more
    … of this project was to create a SAS (SAS Institute, Cary, NC) interface for SaTScan which can be used to create … Allyson M. Abrams, Ken Kleinman Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard … of this project was to create a SAS (SAS Institute, Cary, NC) interface for SaTScan [1] which can be used to …
  • Telephone Triage Data for Detection of Influenza-like Illness

    Content Type: Abstract

    National surveillance is used to detect the emergence and spread of influenza virus variants and to monitor influenza-related morbidity and mortality. Nurse telephone triage (“call”) data may serve as a useful complement to… read more
    … Harmon,3 Richard Platt,1 1 Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard … on number of influenza isolates and percentage of total visits to sentinel providers for influenza-like illness were … [2] Henry JV, Magruder S, Snyder M. Comparison of office visit and nurse advice hotline data for syndromic …
  • Multi-Method Comparison of Detecting Common Events of Public Health Interest: a Multi-Site, Multi-Stream Simulation Study

    Content Type: Abstract

    Existing statistical methods can perform well in detecting simulated bioterrorism events. However, these methods have not been well-evaluated for detection of the type of respiratory and gastrointestinal events of greatest… read more
    … _Detecting_Common_Events_Of_Public_Health_Interest_A_Multi-Site_Multi-Stream_Simulation_Study.pdf 6 views Submitted by … common events of public health interest: a multi-site, multi-stream simulation study Ken Kleinman1, Allyson … Common Events of Public Health Interest: a Multi-Site, Multi-Stream Simulation Study …
  • in silico Surveillance: Highly detailed agent-based models for surveillance system evaluation and design

    Content Type: Abstract

    Modern public health surveillance systems have great potential for improving public health. However, evaluating the performance of surveillance systems is challenging because examples of baseline disease distribution in the population are limited to… read more
    … seeking behavior and a surveillance system for outpatient visits. The resulting in silico surveil- lance data contain … specified surveillance system create a data stream of ILI visits. Outbreaks of influenza are artificially inserted …
  • Empirical/Asymptotic P-Values for Monte Carlo-Based Hypothesis Testing: An Application to Cluster Detection Using the Scan Statistic

    Content Type: Abstract

    SaTScan is a freely available software that uses the scan statistic to detect clusters in space, time or space-time. SaTScan uses Monte Carlo hypothesis testing in order to produce a p-value for the null hypothesis that no… read more
    … Martin Kulldorff, Ken Kleinman Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care OBJECTIVE Our goal was to increase the precision of the …
  • Evaluating Outbreak-Detection Methods Using Simulations: Volume Under the Time-ROC Surface

    Content Type: Abstract

    There are many proposed methods of identifying outbreaks of disease in surveillance data. However, there is little agreement about appropriate ways to choose amongst them. One common basis for comparison is simulating outbreaks and adding the simu… read more
    … Allyson Abrams From the Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care OBJECTIVE We developed metrics for evaluating tools …