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Validity of electronic surveillance systems: a systematic review

Validity of electronic surveillance systems: a systematic review

Authors :
Jenine Leal
Kevin B. Laupland
Source :
Journal of Hospital Infection. 69:220-229
Publication Year :
2008
Publisher :
Elsevier BV, 2008.

Abstract

Electronic surveillance that utilises information held in databases is more efficient than conventional infection surveillance methods. Validity is not well-defined, however. We systematically reviewed studies comparing the utility of electronic and conventional surveillance methods. Publications were identified using Medline (1980-2007) and bibliographic review. The sensitivity and specificity of electronic compared with conventional surveillance was reported. Twenty-four studies were included. Six studies reported that nosocomial infections could be detected utilising microbiology data alone with good overall sensitivity (range: 63-91%) and excellent specificity (range: 87 to >99%). Two studies used three laboratory-based algorithms for the detection of infection outbreaks yielding variable utility measures (sensitivity, range: 43-91%; specificity, range: 67-86%). Seven studies using only administrative data including discharge coding (International Classification of Diseases, 9th edn, Clinical Modification) and pharmacy data claimed databases had good sensitivity (range: 59-96%) and excellent specificity (range: 95 to >99%) in detecting nosocomial infections. Six studies combined both laboratory and administrative data for a range of infections, and overall had higher sensitivity (range: 71-94%) but lower specificity (range: 47 to >99%) than with use of either alone. Three studies evaluated community-acquired infections with variable results. Electronic surveillance has moderate to excellent utility compared with conventional methods for nosocomial infections. Future studies are needed to refine electronic algorithms further, especially with community-onset infections.

Details

ISSN :
01956701
Volume :
69
Database :
OpenAIRE
Journal :
Journal of Hospital Infection
Accession number :
edsair.doi.dedup.....c6d53db2437b593f8e2937825bda0565
Full Text :
https://doi.org/10.1016/j.jhin.2008.04.030