Evidence map›Paper›PMID 28408613›Full record

ArticleJournal of epidemiology and community health2017

Air pollution and the incidence of ischaemic and haemorrhagic stroke in the South London Stroke Register: a case-cross-over analysis.

B K Butland, R W Atkinson, S Crichton, B Barratt, S Beevers, A Spiridou, U Hoang, F J Kelly, C D Wolfe

Abstract read
In one paragraph

Article in Journal of epidemiology and community health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–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

21 citing papers in PubMed.

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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

9 authors.

B K ButlandPopulation Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK.
R W AtkinsonPopulation Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK.
S CrichtonDivision of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, UK.
B BarrattDepartment of Analytical and Environmental Sciences and MRC-PHE Centre for Environment and Health, King's College London, Waterloo, UK.
S BeeversDepartment of Analytical and Environmental Sciences and MRC-PHE Centre for Environment and Health, King's College London, Waterloo, UK.
A SpiridouDivision of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, UK.
U HoangDivision of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, UK.
F J KellyDepartment of Analytical and Environmental Sciences and MRC-PHE Centre for Environment and Health, King's College London, Waterloo, UK.
C D WolfeDivision of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, UK.

Funding

Medical Research Council G1000758Medical Research Council MR/L01341X/1
6 · The paper itself

Abstract

backgroundFew European studies investigating associations between short-term exposure to air pollution and incident stroke have considered stroke subtypes. Using information from the South London Stroke Register for 2005-2012, we investigated associations between daily concentrations of gaseous and particulate air pollutants and incident stroke subtypes in an ethnically diverse area of London, UK.

methodsModelled daily pollutant concentrations based on a combination of measurements and dispersion modelling were linked at postcode level to incident stroke events stratified by haemorrhagic and ischaemic subtypes. The data were analysed using a time-stratified case-cross-over approach. Conditional logistic regression models included natural cubic splines for daily mean temperature and daily mean relative humidity, a binary term for public holidays and a sine-cosine annual cycle. Of primary interest were same day mean concentrations of particulate matter <2.5 and <10 µm in diameter (PM

resultsOur analysis was based on 1758 incident strokes (1311 were ischaemic and 256 were haemorrhagic). We found no evidence of an association between all stroke or ischaemic stroke and same day exposure to PM

conclusionsUsing data from the South London Stroke Register, we found no evidence of a positive association between outdoor air pollution and incident stroke or its subtypes. These results, though in contrast to recent meta-analyses, are not inconsistent with the mixed findings of other UK studies.

Indexed as

AgedAir PollutantsCross-Over StudiesEnvironmental ExposureEnvironmental MonitoringFemaleHumansIncidenceLondonMaleMiddle AgedRegistriesRisk FactorsStrokeWeatherAir PollutantsAIR POLLUTIONEnvironmental epidemiologySTROKE

Identifiers

PMID28408613
PMCPMC5485750

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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.