Evidence map›Paper›PMID 21288358›Full record

ArticleEnvironmental health : a global access science source2011

Long-term effects of flooding on mortality in England and Wales, 1994-2005: controlled interrupted time-series analysis.

Ai Milojevic, Ben Armstrong, Sari Kovats, Bridget Butler, Emma Hayes, Giovanni Leonardi, Virginia Murray, Paul Wilkinson

Abstract readHistorical Article
In one paragraph

Article in Environmental health : a global access science source, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. Pooled it
  2. Observational
  3. All-cause excess mortality following Storm Daniel flood event in Greece.Journal of public health (Oxford, England) · 2025
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  9. Flood- and Weather-Damaged Homes and Mental Health: An Analysis Using England's Mental Health Survey.International journal of environmental research and public health · 2019
    Article
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  11. Trends in water level and flooding in Dhaka, Bangladesh and their impact on mortality.International journal of environmental research and public health · 2015
    Article
  12. Article
  13. Data mashups: potential contribution to decision support on climate change and health.International journal of environmental research and public health · 2014
    Article
  14. Factors increasing vulnerability to health effects before, during and after floods.International journal of environmental research and public health · 2013
    Review
  15. 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

8 authors.

Ai MilojevicDepartment of Social and Environmental Health Research, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London WC1H 9SH, UK. ai.milojevic@lshtm.ac.uk
Ben Armstrong
Sari Kovats
Bridget Butler
Emma Hayes
Giovanni Leonardi
Virginia Murray
Paul Wilkinson

Funding

Medical Research Council G0701030
6 · The paper itself

Abstract

backgroundLimited evidence suggests that being flooded may increase mortality and morbidity among affected householders not just at the time of the flood but for months afterwards. The objective of this study is to explore the methods for quantifying such long-term health effects of flooding by analysis of routine mortality registrations in England and Wales.

methodsMortality data, geo-referenced by postcode of residence, were linked to a national database of flood events for 1994 to 2005. The ratio of mortality in the post-flood year to that in the pre-flood year within flooded postcodes was compared with that in non-flooded boundary areas (within 5 km of a flood). Further analyses compared the observed number of flood-area deaths in the year after flooding with the number expected from analysis of mortality trends stratified by region, age-group, sex, deprivation group and urban-rural status.

resultsAmong the 319 recorded floods, there were 771 deaths in the year before flooding and 693 deaths in the year after (post-/pre-flood ratio of 0.90, 95% CI 0.82, 1.00). This ratio did not vary substantially by age, sex, population density or deprivation. A similar post-flood 'deficit' of deaths was suggested by the analyses based on observed/expected deaths.

conclusionsThe observed post-flood 'deficit' of deaths is counter-intuitive and difficult to interpret because of the possible influence of population displacement caused by flooding. The bias that might arise from such displacement remains unquantified but has important implications for future studies that use place of residence as a marker of exposure.

Indexed as

AdolescentAdultAgedChildChild, PreschoolEnglandEnvironmental ExposureFemaleFloodsHistory, 20th CenturyHistory, 21st CenturyHumansInfantInfant, NewbornMaleMiddle Aged

Identifiers

PMID21288358
PMCPMC3042000

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.