Evidence map›Paper›PMID 38000380›Full record

ArticleThe Lancet. Child & adolescent health2024

Characterising sources of PM

Shanon Lim, Bibie Said, Lindsay Zurba, Gioia Mosler, Emmanuel Addo-Yobo, Olayinka Olufunke Adeyeye, Bernard Arhin, Dimitris Evangelopoulos, Victoria Temitope Fapohunda, Farida Fortune and 17 more

Open access · hybridAbstract read
In one paragraph

Article in The Lancet. Child & adolescent health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Association between PMArchives of public health = Archives belges de sante publique · 2026
    Article
  4. Asthma in African children and adolescents: Burden, barriers, and management strategies.African journal of thoracic and critical care medicine · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Familial Differences in Personal PMEnvironmental science & technology · 2025
    Article
  12. Article
  13. Personal PMToxics · 2025
    Article
  14. Article
  15. Review
  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

27 authors at 14 institutions in 9 countries.

Shanon LimMRC Centre for Environment and Health, Environmental Research Group, Imperial College London, London, UK; Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland, New Zealand.
Bibie SaidKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania; Kibong'oto Infectious Disease Hospital, Hai, Tanzania.
Lindsay ZurbaEducation for Health Africa, Durban, South Africa.
Gioia MoslerCentre for Genomics and Child Health, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Emmanuel Addo-YoboDepartment of Child Health, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Olayinka Olufunke AdeyeyeDepartment of Medicine, Lagos State University College of Medicine, and Lagos State University Teaching Hospital, Ikeja Lagos, Nigeria.
Bernard ArhinKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Dimitris EvangelopoulosMRC Centre for Environment and Health, Environmental Research Group, Imperial College London, London, UK.
Victoria Temitope FapohundaDepartment of Medicine, Lagos State University College of Medicine, and Lagos State University Teaching Hospital, Ikeja Lagos, Nigeria.
Farida FortuneCentre for Oral immunobiology and Regenerative Medicine, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Chris J GriffithsAsthma UK Centre for Applied Research, Wolfson Institute of Population Health, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Sbekezelo HlopheDepartment of Paediatrics and Child Health, Nelson R Mandela School of Clinical Medicine, College of Health Sciences, University of KwaZulu Natal, Durban, South Africa.
Marian KaseketeUniversity of Zimbabwe Faculty of Medicine and Health Sciences, Harare, Zimbabwe.
Scott LowtherDyson Technology Limited, Malmesbury, Wiltshire, UK.
Refiloe MasekelaDepartment of Paediatrics and Child Health, Nelson R Mandela School of Clinical Medicine, College of Health Sciences, University of KwaZulu Natal, Durban, South Africa.
Elizabeth MkutumulaMalawi Liverpool Wellcome Programme, Blantyre, Malawi.
Blandina Theophil MmbagaKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania; Kilimanjaro Christian Medical University College, Moshi, Tanzania.
Hilda Angela MujuruUniversity of Zimbabwe Faculty of Medicine and Health Sciences, Harare, Zimbabwe.
Rebecca NantandaMakerere University Lung Institute, Makerere College of Health Sciences, Kampala Uganda.
Lovemore Mzati NkhalambaMalawi Liverpool Wellcome Programme, Blantyre, Malawi.
James S NgochoKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania; Kilimanjaro Christian Medical University College, Moshi, Tanzania.
Oluwafemi Tunde OjoDepartment of Medicine, Lagos State University College of Medicine, and Lagos State University Teaching Hospital, Ikeja Lagos, Nigeria.
Sandra Kwarteng OwusuKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Sunshine ShaibuDepartment of Medicine, Lagos State University College of Medicine, and Lagos State University Teaching Hospital, Ikeja Lagos, Nigeria.
Ismail TicklayUniversity of Zimbabwe Faculty of Medicine and Health Sciences, Harare, Zimbabwe.
Jonathan GriggCentre for Genomics and Child Health, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Benjamin BarrattMRC Centre for Environment and Health, Environmental Research Group, Imperial College London, London, UK; NIHR NPRU in Environmental Exposures and Health, Imperial College London, London, UK. Electronic address: b.baratt@imperial.ac.uk.
Lagos State University Teaching Hospital · NGKilimanjaro Christian Medical Centre · TZQueen Mary University of London · GBUniversity of Zimbabwe · ZWImperial College London · GBKomfo Anokye Teaching Hospital · GHUniversity of KwaZulu-Natal · ZAAsthma UK · GBDyson (United Kingdom) · GBKwame Nkrumah University of Science and Technology · GHMakerere University · UGMalawi-Liverpool-Wellcome Trust Clinical Research Programme · MWUniversity of Auckland · NZUniversity of Liverpool · GB

Funding

Medical Research Council MR/T502613/1Wellcome Trust
6 · The paper itself

Abstract

backgroundAir pollution is the second largest risk to health in Africa, and children with asthma are particularly susceptible to its effects. Yet, there is a scarcity of air pollution exposure data from cities in sub-Saharan Africa. We aimed to identify potential exposure reduction strategies for school children with asthma living in urban areas in sub-Saharan Africa.

methodsThis personal exposure study was part of the Achieving Control of Asthma in Children in Africa (ACACIA) project. Personal exposure to particulate matter (PM) was monitored in school children in six cities in sub-Saharan Africa (Blantyre, Malawi; Durban, South Africa; Harare, Zimbabwe; Kumasi, Ghana; Lagos, Nigeria; and Moshi, Tanzania). Participants were selected if they were aged 12-16 years and had symptoms of asthma. Monitoring was conducted between June 21, and Nov 26, 2021, from Monday morning (approximately 1000 h) to Friday morning (approximately 1000 h), by use of a bespoke backpack with a small air pollution monitoring unit with an inbuilt Global Positioning System (GPS) data logger. Children filled in a questionnaire detailing potential sources of air pollution during monitoring and exposures were tagged into three different microenvironments (school, commute, and home) with GPS coordinates. Mixed-effects models were used to identify the most important determinants of children's PM

findings330 children were recruited across 43 schools; of these, 297 had valid monitoring data, and 1109 days of valid data were analysed. Only 227 (20%) of 1109 days monitored were lower than the current WHO 24 h PM

interpretationOur study suggests that the most effective changes to reduce PM

fundingUK National Institute for Health and Care Research.

Indexed as

Air Pollution, IndoorAsthmaChildCitiesEnvironmental ExposureEnvironmental MonitoringHumansNigeriaParticulate MatterSouth AfricaZimbabweParticulate Matter

Identifiers

PMID38000380
PMCPMC10716619
OpenAlexW4388914780

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.