Displaying results 1 - 6 of 6
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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… ways to choose amongst them. One common basis for com- parison is simulating outbreaks and adding the simu- … connected across the ROC curve to form a curtain, then con- nected to the (x,y,z) = (1,0,1) corner of the ROC curve … than either the tent or the two-threshold method. In con- trast, the conditional ROC curve resulted in much … -
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… percentage of visits for ILI from sentinel providers were com- pared to rolling, seven-day totals of calls for ILI and … -
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… for the spatial and space-time scan statistics. 2004, www.satscan.org. Advances in Disease Surveillance 2006;1:2 … -
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… for the spatial and space-time scan statistics. 2004, www.satscan.org. [2] Kulldorff, M, A spatial scan statistic. … -
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… useful information for syndromic surveillance. Cor- relation with confirmed outbreaks will be necessary 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… CA 3,136,617 0.80 0.85 0.89 WI 825,255 0.67 0.81 0.87 CO 558,705 0.82 0.96 0.86 TX 2,529,566 0.83 0.97 0.85 IL …