Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

A feasibility study of clinical and non-clinical data sources used in influenza syndromic surveillance: Application of correlation analysis approach

(2016) A feasibility study of clinical and non-clinical data sources used in influenza syndromic surveillance: Application of correlation analysis approach. Iranian Journal of Epidemiology.

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Abstract

Background and Objectives: Syndromic surveillance systems are used to early detection of outbreaks. The purpose of this study was to determine the feasibility of clinical and non-clinical data sources used in influenza syndromic surveillance in Zanjan. Methods: In this time series study, clinical and non-clinical data related to influenza like illness (ILI) as a potential data source of syndromic surveillance systems, including the number of missed school days collected from 12 schools and the data of over the counter (OTC) drug sale obtained from 15 pharmacies selected randomly in Zanjan during 2014 were used. We used the line plot and moving average chart to explore trends and detect potential explainable patterns of data sources. The autocorrelation function and cross correlation function besides corresponding graphs were used to assess the feasibility of school absenteeism and OTC sale in timely detection of influenza outbreaks. Results: Line plots indicated the presence of explainable patterns and the effect of the day of the week. The cross correlation value was 0.5 and cross correlogram revealed the similarity of both data sources in this study. Conclusion: Our findings indicated the feasibility of influenza data sources, including school absenteeism and OTC, as potential data sources of syndromic surveillance systems. © 2016, Iranian Epidemiological Association. All rights reserved.

Item Type: Article
Keywords: non prescription drug, absenteeism; Article; correlation analysis; disease surveillance; drug marketing; flu like syndrome; human
Page Range: pp. 40-48
Journal or Publication Title: Iranian Journal of Epidemiology
Volume: 12
Number: 2
Publisher: Iranian Epidemiological Association
ISSN: 17357489
Depositing User: مهندس جمال محمودپور
URI: http://eprints.muk.ac.ir/id/eprint/657

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