Evidence map›Paper›PMID 29654005›Full record

ArticleBMJ open2018

Is ambient air pollution associated with onset of sudden infant death syndrome: a case-crossover study in the UK.

Ian J Litchfield, Jon G Ayres, Jouni J K Jaakkola, Nuredin I Mohammed

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 19% of its field
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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Infant Mortality Related to NOInternational journal of environmental research and public health · 2020
    Pooled it
  4. Article
  5. Article
  6. Maternal, infant, and environmental risk factors for sudden unexpected infant deaths: results from a large, administrative cohort.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2022
    Article
  7. Article
  8. Synergistic or Antagonistic Health Effects of Long- and Short-Term Exposure to Ambient NOInternational journal of environmental research and public health · 2022
    Review
  9. Review
  10. Ambient Air Pollution and Sudden Infant Death Syndrome in Korea: A Time-Stratified Case-Crossover Study.International journal of environmental research and public health · 2019
    Article
  11. The association of early-life exposure to ambient PMEnvironmental health : a global access science source · 2019
    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 at 3 institutions in 3 countries.

Ian J LitchfieldInstitute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.ORCID 0000-0002-1169-5392
Jon G AyresInstitute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
Jouni J K JaakkolaCenter for Environmental and Respiratory Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.ORCID 0000-0003-4168-4683
Nuredin I MohammedInstitute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
University of Birmingham · GBMRC Unit the Gambia · GMUniversity of Oulu · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAir pollution has been associated with increased mortality and morbidity in several studies with indications that its effect could be more severe in children. This study examined the relationship between short-term variations in criteria air pollutants and occurrence of sudden infant death syndrome (SIDS).

designWe used a case-crossover study design which is widely applied in air pollution studies and particularly useful for estimating the risk of a rare acute outcome associated with short-term exposure.

settingThe study used data from the West Midlands region in the UK.

participantsWe obtained daily time series data on SIDS mortality (ICD-9: 798.0 or ICD-10: R95) for the period 1996-2006 with a total of 211 SIDS events. PRIMARY OUTCOME MEASURES: Daily counts of SIDS events.

resultsFor an IQR increase in previous day pollutant concentration, the percentage increases (95% CI) in SIDS were 16 (6 to 27) for PM

conclusionsThe results indicated ambient air pollutants, particularly PM

Indexed as

Air PollutantsAir PollutionChildCross-Over StudiesHumansInfantParticulate MatterSudden Infant DeathUnited KingdomUrban PopulationAir PollutantsParticulate Mattercommunity child healthcot deathepidemiologypaediatric thoracic medicinepublic health

Identifiers

PMID29654005
PMCPMC5898297
OpenAlexW2803197905

What OpenQuestion holds

Textmetadata
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.