Invitational talk from the NSF/NCI workshop "Cyberinfrastructure in Behavioral Medicine" in San Diego on March 31st 2008, talking about what I call infodemiology / infoveillance work
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Eysenbach: Infodemiology and Infoveillance
1. Associate Professor Department of Health Policy, Management and Evaluation, University of Toronto; Senior Scientist , Centre for Global eHealth Innovation, Division of Medical Decision Making and Health Care Research; Toronto General Research Institute of the UHN, Toronto General Hospital, Canada [email_address] Gunther Eysenbach MD MPH Gunther Eysenbach MD MPH Infodemiology and Infoveillance Infodemiology and Infoveillance
2. “ Infodemiology” the epidemiology of information Describing and analyzing information & communication patterns and its relationship to population health status The science of distribution and determinants of disease in populations Epidemiology Public Health Professionals Policy Makers Public Health Interventions Policy Decisions Population Health Status The notion of “infodemiology” G. Eysenbach. Infodemiology. American Journal of Medicine , 2002;113(0):763-765 Information & Communication patterns
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4. “ Infodemiology” the epidemiology of information Describing and analyzing health information & communication patterns (e.g. on the Web) for public health purposes Demand Metrics Supply Metrics Gunther Eysenbach Infodemiology: the epidemiology of (mis)information American Journal of Medicine , 2002;113(0):763-765
6. What is published in the medical peer-reviewed literature What is published on the Internet Comparison: Gaps indicate knowledge translation problems
7. Supply Metrics in Public Health Policy Objectives http://www.healthypeople.gov
8. What is published on the Internet / in public media What is published on the Internet / in public media time Identify emerging disease outbreaks
9. Global Public Health Intelligence Network (GPHIN) GPHIN monitors global media sources (such as news wires and web sites ), then gathers and disseminates relevant information on such topics as disease outbreaks, infectious diseases, contaminated food and water, bio-terrorism and exposure to chemical and radio-nuclear agents, and natural disasters. It also monitors issues related to the safety of products, drugs and medical devices.
12. “ Infodemiology” the epidemiology of information Describing and analyzing health information & communication patterns (e.g. on the Web) Demand Metrics Supply Metrics Gunther Eysenbach Infodemiology: the epidemiology of (mis)information American Journal of Medicine , 2002;113(0):763-765
18. A “demand metric”: Health-related searches on the web Eysenbach G, Köhler C. What is the Prevalence of Health-related Searches on the World Wide Web? Qualitative and Quantitative Analysis of Search Engine Queries on the Internet. Proc AMIA Annu Fall Symp ; 2003: 225-229 Eysenbach G, Köhler C. Health-Related Searches on the Internet JAMA , Jun 2004; 291: 2946. Method also used by e.g.: Cobb NK, Graham AL Characterizing Internet Searchers of Smoking Cessation Information J Med Internet Res 2006;8(3):e17 <URL: http://www.jmir.org/2006/3/e17/>
19. Breakdown of health-related search engine queries by category Eysenbach G, Köhler C. Health-Related Searches on the Internet JAMA 2004; 291:2946
20. Daily searches on Google.ca for “flu” or “flu symptoms” 2003/2004 2007/2008 2004/2005 2005/2006 2006/2007 Impressions (searches) Eysenbach G. Infodemiology. Proc AMIA Fall Symp 2006
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22. Infodemiology: Tracking demand for health information for syndromic surveillance Eysenbach G. Infodemiology. Proc AMIA Fall Symp 2006
23. Correlation clicks vs next wk cases Eysenbach G. Infodemiology. Proc AMIA Fall Symp 2006
29. Infovigil project An infoveillance prototype system at the the Centre for Global eHealth Innovation
30. Infovigil - an infoveillance prototype Centre for Global eHealth Innovation, Toronto % Increase Search Activity for Flu-Related Information over last week
37. Problem: Where to get search data from? (Search engines not forthcoming with data) Gonzales vs Google Inc. Motion to Compel. Jan 18, 2006 http://www.webcitation.org/1142396222389927 The U.S. Department of Justice filed a motion in federal court seeking a court order that would compel search engine company Google, Inc. to turn over “a multi-stage random sample of one million URL’s” from Google’s database, and a computer file with “the text of each search string entered onto Google’s search engine over a one-week period (absent any information identifying the person who entered such query.”
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40. Infovigil consortium - an infoveillance prototype Centre for Global eHealth Innovation, Toronto within-site search engines Infovigil™ Aggregator/ Datamining/ Vizualisation Interested to participate with your site? Email geysenba@gmail.com XML (aggregate search reports, log files) http://www.google.com/search? q=flu &hl=en &start=10 &num=10 &output=xml &client=google-csbe &cx=00255077836266642015:u-scht7a-8i http://www.infovigil.com/search? q=flu (…)
42. Associate Professor Department of Health Policy, Management and Evaluation, University of Toronto; Senior Scientist , Centre for Global eHealth Innovation, Division of Medical Decision Making and Health Care Research; Toronto General Research Institute of the UHN, Toronto General Hospital, Canada Interested to participate in Infovigil with your site? Email geysenba@gmail.com [email_address] Gunther Eysenbach MD MPH Gunther Eysenbach MD MPH Thank you! Thank you !