Displaying results 1 - 3 of 3
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What is the Value of a Positive Syndromic Surveillance Signal?
Content Type: Abstract
One criterion for evaluating the effectiveness of a surveillance system is the system’s positive predictive value. To our knowledge few studies have described the positive predictive value of syndromic surveillance signals… read more… departments (EDs) in King County. EDs send data on all visits that occurred the previous day. Aberrations in … we requested follow-up (positive predictive value 28.1%); 26/61 reports were not otherwise reported to Public Health. … by law. The primary limitation of this study is that we did not analyze signals that didn’t result in follow-up. … -
In data we trust? An evaluation of the quality of influenza hospital admissions data gathered by automated versus manual reporting
Content Type: Abstract
The Washington Comprehensive Hospital Abstract Reporting System (CHARS) has collected discharge data from billing systems for every inpatient admitted to every hospital in the state since 1987 [1]. The purpose of the system is to provide data for… read more… discharge month/ year, age, sex and zip code. We flagged all influenza admissions in the PHSKC system that did not have a matching record in CHARS. Next, we asked … data to monitor the severity of seasonal flu. Adv Dis Surveill. 2008;5: 161. … -
The validity of emergency department influenza-like-illness (ILI) for laboratory-confirmed influenza in children
Content Type: Abstract
Syndromic surveillance systems use electronic health-related data to support near-real time disease surveillance. Over the last 10 years, the use of ILI syndromes defined from emergency department (ED) data has become an increasingly accepted… read more… to those from CC alone. The false positive fraction of all syndrome definitions was higher in younger children … permitting all non-commercial use, distribution, and reproduction in … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …