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Displaying results 1 - 8 of 9
  • 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
    … to gener- ate each p-value while still retaining enough preci- sion in the p-value to determine how unusual a clus- … Communications in Sta- tistics: Theory and Methods, 1997. 26: p. 1481-1496. [3] Gumbel, EJ, Statistics of Extremes. …
  • 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
    … and mortality. Nurse telephone triage (“call”) data may serve as a useful complement to traditional influenza … 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 …
  • 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
    … how common analytical development and analysis may be coupled with realistic data sets to provide insight … and then benchmarked using five years of daily visits in the Boston area of the HPHC data. In particular, … we dem- onstrate an approach for this process based on a com- mon analytical development and benchmarking with common …
  • (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
    … can make spatial patterns difficult to discern and may mask areas of persistently high risk. This study … can make spatial patterns difficult to discern and may mask areas of persistently high risk. This study … the latter. Additionally, spatial patterns of mortality may be driven largely by spatial patterns of demographic …
  • 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
    … are aimed at detecting irregularly shaped clusters which may not be detected by the circular spatial scan statistic. … - 08:40 … Advances in Disease Surveillance 2007;2:70 … A time periodic geographic disease surveillance system … are aimed at detecting irregularly shaped clusters which may not be detected by the circular spatial scan statistic. …
  • 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
    … Group WHONET-Argentina, established in 1986, comprises 70 microbiology laboratories nationwide [2], all of which … space and time with known outbreaks and 2 additional ones may have corresponded with known outbreaks, relationships … and Information Management Services, Inc. SaTScan(TM) v.7.0: Software for the spatial and time-scan statistics. …
  • (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
    … variation. Additionally, spatial patterns of mortality may be driven largely by spatial patterns of demographic characteristics. In these cases, it may be preferable to describe the risk in terms of the …
  • Comparing the Utility of Ambulatory Care and Emergency Room Data for Disease Outbreak Detection

    Content Type: Abstract

    To compare the ability to detect disease outbreaks of separate and combined data streams from ambulatory care and emergency department from Harvard Pilgrim Health Care.
    … made among them. Alternatively, these data sources can be com- bined in order to generate a common sequence of … sources of data can be correlated since individuals may seek care in a variety of settings, including hospital … The x-coordinates represent the day of the signals and y- coordinate the associated Recurrence Interval. …