Evidence map›Paper›PMID 24480399›Full record

ArticleEpidemiology and infection2014

Emergency department and 'Google flu trends' data as syndromic surveillance indicators for seasonal influenza.

L H Thompson, M T Malik, A Gumel, T Strome, S M Mahmud

Abstract readComparative Study
In one paragraph

Article in Epidemiology and infection, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Article
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  9. Article
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  11. Review
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  13. Surveillance for emerging respiratory viruses.The Lancet. Infectious diseases · 2014
    Review
  14. Article
  15. Measuring Global Disease with Wikipedia: Success, Failure, and a Research Agenda.CSCW : proceedings of the Conference on Computer-Supported Cooperative Work. Conference on Computer-Supported Cooperative Work
    Article
  16. A Practitioner-Driven Research Agenda for Syndromic Surveillance.Public health reports (Washington, D.C. : 1974)
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

L H ThompsonDepartment of Community Health Sciences,University of Manitoba,Winnipeg, MB,Canada.
M T MalikDepartment of Community Health Sciences,University of Manitoba,Winnipeg, MB,Canada.
A GumelDepartment of Mathematics,University of Manitoba,Winnipeg, MB,Canada.
T StromeDepartment of Emergency Medicine,University of Manitoba,Winnipeg, MB,Canada.
S M MahmudDepartment of Community Health Sciences,University of Manitoba,Winnipeg, MB,Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We evaluated syndromic indicators of influenza disease activity developed using emergency department (ED) data - total ED visits attributed to influenza-like illness (ILI) ('ED ILI volume') and percentage of visits attributed to ILI ('ED ILI percent') - and Google flu trends (GFT) data (ILI cases/100 000 physician visits). Congruity and correlation among these indicators and between these indicators and weekly count of laboratory-confirmed influenza in Manitoba was assessed graphically using linear regression models. Both ED and GFT data performed well as syndromic indicators of influenza activity, and were highly correlated with each other in real time. The strongest correlations between virological data and ED ILI volume and ED ILI percent, respectively, were 0·77 and 0·71. The strongest correlation of GFT was 0·74. Seasonal influenza activity may be effectively monitored using ED and GFT data.

Indexed as

Disease OutbreaksInternetDatabases, FactualEmergency Service, HospitalFemaleHumansIncidenceInfluenza, HumanLinear ModelsMaleManitobaPopulation SurveillanceSeverity of Illness Index

Identifiers

PMID24480399
PMCPMC9151325

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.