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Displaying results 1 - 8 of 17
  • Traveling Epidemic Waves in Biosurveillance Data: Identifying Early Hotspots of Respiratory Illness

    Content Type: Abstract

    We have previously shown that timeliness of detection is influenced both by the data source (e.g., ambulatory vs. emergency department) and demographic characteristics of patient populations (e.g., age). Because epidemic waves are thought to… read more
    … may affect disease susceptibility and hence timing of visits. Here, we describe spatial models of local … may affect disease susceptibility and hence timing of visits. Here, we describe spatial models of local … referral bias by including the likelihood of a hospital visit based on the market share of a zip code. The model …
  • Characterizing Socioeconomic Disparities in the Burden of Influenza and RSV Using Surveillance Data

    Content Type: Abstract

    To measure the impact, within administrative geographic areas, of household income on rates of visits due influenza and RSV among children using real-time syndromic surveillance.
    … geographic areas, of household income on rates of visits due influenza and RSV among children using real-time … geo- graphic areas, of household income on rates of visits due influenza and RSV among children using real- time … tion chief complaint data from emergency department visits at Miami Children’s Hospital in Miami, FL. We …
  • Anonymization of Spatial Data by Gaussian Skew: Is Re-Identification Possible?

    Content Type: Abstract

    To evaluate the robustness of a spatial anonymization algorithm for syndromic surveillance data against a triangulation vulnerability attack. `BACKGROUND We have published an anonymization algorithm that takes precise point locations for patients… read more
    … Gaus- sian distribution that is inversely adjusted by the un- derlying population density. Before such algorithms can …
  • State Surveillance Data Improves a Clinical Prediction Model for Pertussis

    Content Type: Abstract

    Bordetella Pertussis outbreaks cause morbidity in all age groups, but the infection is most dangerous for young infants. Pertussis is difficult to diagnose, especially in its early stages, and definitive test results are not… read more
    … and negative predictive value (PPV, NPV), and area un- der the ROC curve (AROC)). RESULTS Cyanosis, cough for …
  • Accurate Detection of Arbitrarily-Shaped Spatial Disease Clusters

    Content Type: Abstract

    Methods for locating spatial clusters of diseases are typically variations of the circular scan statistic method. They restrict the number of potential clusters by considering all circular, rectangular, or elliptical regions, and then apply a… read more
    … EMST method rful alternative to [1] Kulldorff M, A spatia un Statist: Theory etecting elongated disease czmal L, An …
  • Improved diagnosis of group A streptococcal pharyngitis using real-time biosurveillance

    Content Type: Abstract

    Group A Streptococcal (GAS) pharyngitis, the most common bacterial cause of acute pharyngitis, causes more than half a billion cases annually worldwide. Treatment with antibiotics provides symptomatic benefit and reduces complications… read more
    … University of California San Diego, San Diego, CA, USA E-mail: Andrew.Fine@childrens.harvard.edu Objective The … was restricted to nine markets with 47000 patient visits for pharyngitis, for a total of 138,910 patient … across six states. Anonymized extracted data included visit date, location, signs and symptoms included in the …
  • Improved diagnosis of group A streptococcal pharyngitis using real-time biosurveillance

    Content Type: Abstract

    Group A Streptococcal (GAS) pharyngitis, the most common bacterial cause of acute pharyngitis, causes more than half a billion cases annually worldwide. Treatment with antibiotics provides symptomatic benefit and reduces complications, missed work… read more
    … University of California San Diego, San Diego, CA, USA E-mail: Andrew.Fine@childrens.harvard.edu Objective The … was restricted to nine markets with 47000 patient visits for pharyngitis, for a total of 138,910 patient … across six states. Anonymized extracted data included visit date, location, signs and symptoms included in the …
  • Privacy Protection versus Cluster Detection in Spatial Epidemiology

    Content Type: Abstract

    With the widespread deployment of near real time population health monitoring, there is increasing focus on spatial cluster detection for identifying disease outbreaks. These spatial epidemiologic methods rely on knowledge of patient location to… read more
    … tions, significant clusters contained fewer additional ED visit points (i.e., points that were not part of the … in small circle) and few additional points from the ED visits (red dots outside small circle). However, when the … with points at zip code centroids (right), many more ED visits were included in the detected cluster. CONCLUSIONS …