Evidence map›Paper›PMID 25850904›Full record

ArticleEpidemiology and infection2015

Ethnicity, deprivation and mortality due to 2009 pandemic influenza A(H1N1) in England during the 2009/2010 pandemic and the first post-pandemic season.

H Zhao, R J Harris, J Ellis, R G Pebody

Abstract read
In one paragraph

Article in Epidemiology and infection, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. The Global Polycrisis and Health Inequalities.International journal of social determinants of health and health services · 2025
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  10. COVID-19 pandemic evolution in the Brazilian Indigenous population.Journal of racial and ethnic health disparities · 2022
    Article
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  12. Article
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  14. Article
  15. Article
  16. Article
  17. COVID-19 and geographical area of origin.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2021
    Article
  18. Article
  19. Article
  20. Observational
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

4 authors.

H ZhaoRespiratory Diseases Department,Public Health England,Colindale,London,UK.
R J HarrisStatistics, Modelling and Economics Department,Public Health England,Colindale,London,UK.
J EllisVirus Reference Department,Public Health England,Colindale,London,UK.
R G PebodyRespiratory Diseases Department,Public Health England,Colindale,London,UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The relationship between risk of death following influenza A(H1N1)pdm09 infection and ethnicity and deprivation during the 2009/2010 pandemic period and the first post-pandemic season of 2010/2011 in England was examined. Poisson regression models were used to estimate the mortality risk, adjusted for age, gender, and place of residence. Those of non-White ethnicity experienced an increased mortality risk compared to White populations during the 2009/2010 pandemic [10·5/1000 vs. 6·0/1000 general population; adjusted risk ratio (RR) 1·84, 95% confidence interval (CI) 1·39-2·54] with the highest risk in those of Pakistani ethnicity. However, no significant difference between ethnicities was observed during the following 2010/2011 season. Persons living in areas with the highest level of deprivation had a significantly higher risk of death (RR 2·08, 95% CI 1·49-2·91) compared to the lowest level for both periods. These results highlight the importance of rapid identification of groups at higher risk of severe disease in the early stages of future pandemics to enable the implementation of optimal prevention and control measures for vulnerable populations.

Indexed as

EthnicityAdolescentAdultAgedAged, 80 and overChildChild, PreschoolEnglandFemaleHumansInfantInfant, NewbornInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleMiddle AgedEnglandethnicityinfluenza A(H1N1)pdm09mortalitypandemic

Identifiers

PMID25850904
PMCPMC9150971

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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.