Skip to main content

Displaying results 1 - 8 of 10
  • Benchmarking Temporal Surveillance Techniques

    Content Type: Abstract

    Benchmarking of temporal surveillance techniques is a critical step in the development of an effective syndromic surveillance system. Unfortunately, holding “bakeoffs” to blindly compare approaches is a difficult and often fruitless enterprise, in… read more
    … is a difficult and often fruitless enterprise, in part due to the parameters left to the final user for tuning. In … is a diffi- cult and often fruitless enterprise, in part due to the parameters left to the final user for tuning. In … cu- mulative false positive at day seven=0.02. RESULTS All three viewpoints are compared theoretically and then …
  • A Flexible Space-Time Scan Statistic for Disease Outbreak Detection and Monitoring

    Content Type: Abstract

    A time periodic geographic disease surveillance system based on a cylindrical space-time scan statistic proposed by Kulldorff [1] has been used extensively for disease surveillance along with the SaTScan software. This statistic is based on a… read more
    … detected by the circular spatial scan statistic. However, due to the unlimited geometric freedom of cluster shapes, … detected by the circular spatial scan statistic. However, due to the unlimited geometric freedom of cluster shapes, …
  • 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
    … 999 replicates the maximum log- likelihood ratio, among all distinct circles, is the sta- tistic reported. The … including the Gamma, Normal, and Lognormal, all resulted in biased p-values. Interest- ingly, the … Communications in Sta- tistics: Theory and Methods, 1997. 26: p. 1481-1496. [3] Gumbel, EJ, Statistics of Extremes. …
  • A Space Time Permutation Scan Statistic with Irregular Shape for Disease Outbreak Detection

    Content Type: Abstract

    This paper describes a methodology for detecting irregular space-time cluster using the space time permutation scan statistic. The methodology includes sequential Monte Carlo simulation and distribution approximation to estimate the error type I.
    … and time ap- proaches were tested. Results show that all methods provide outbreak detection but the arbitrary in … Permutation Scan Statistic for Disease Outbreak De- tection, PLoS Medicine. 2005; 2:216-224. [2] Abrams A, … 25(5) 723-742. [5] Takahashi K, Kulldorff M, Tango T and Yie K, A Flexible Space-Time Scan Statistic for Disease …
  • (Syndromic) Surveillance of Birthweight, Gestation, and Infant Mortality

    Content Type: Abstract

    This study uses data on births in New York City between 2000-2005 to investigate the spatial pattern of birthweight and gestation, two primary risk factors for infant mortality. The analysis uses SatScan to perform normal-distribution cluster… read more
    … 2007) neighborhood variation can be quite high. However, due to the small numbers of infant deaths, some …
  • (Syndromic) Surveillance of Birthweight, Gestation, and Infant Mortality

    Content Type: Abstract

    There is a great deal of interest in spatial patterns of infant mortality. However, small numbers can make spatial patterns difficult to discern and may mask areas of persistently high risk. This study investigates the spatial pattern of birthweight… read more
    … 2006) neighborhood variation can be quite high. However, due to the small numbers of infant deaths, some …
  • WHONET and BacLink: Software Tools for Laboratory-Based Surveillance of Infectious Diseases and Antimicrobial Resistance

    Content Type: Abstract

    Clinical and public health microbiology laboratories of the world are a rich, underutilized resource in monitoring the changing epidemiology of microbial populations worldwide. Two areas of public health importance in which effective use of relevant… read more
    … trends in S. aureus isolations. The upper line depicts all patients with S. aureus; the lower line depicts a … and management of antimicrobial resistance. Clin Infect Dis 2001; 33 (suppl 2). [2] Kulldorf M. and Information …
  • Detection of Shigella Outbreaks in Argentina Using WHONET and SaTScan

    Content Type: Abstract

    Electronic laboratory-based surveillance can significantly improve the diagnostic specificity and response time of traditional infectious disease surveillance. Under the project “Models of Infectious Disease Agent Study”, we… read more
    … School, 3Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr. C. Malbrán”, 4Dirección Epidemiología, Ministerio de Salud, Argentina OBJECTIVE This paper describes the … comprises 70 microbiology laboratories nationwide [2], all of which enter their data into the widely used WHONET …