Evidence map›Paper›PMID 32539547›Full record

Trial reportCirculation research2020

Acute Blood Pressure-Lowering Effects of Nitrogen Dioxide Exposure From Domestic Gas Cooking Via Elevation of Plasma Nitrite Concentration in Healthy Individuals.

Christopher N Floyd, Fawzia Shahed, Frances Ukah, Karen McNeill, Kevin O'Gallagher, Charlotte E Mills, Dimitris Evangelopoulos, Shanon Lim, Ian Mudway, Benjamin Barratt and 2 more

Open access · bronzeAbstract readLetterRandomized Controlled Trial
In one paragraph

Trial report in Circulation research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 31% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Pre- and postnatal exposure to PMEnvironmental research · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
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

12 authors at 2 institutions in 1 country.

Christopher N FloydFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
Fawzia ShahedFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
Frances UkahFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
Karen McNeillFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
Kevin O'GallagherFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
Charlotte E MillsNutritional Sciences, School of Life Course Sciences, King's College London, UK, Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, UK (C.E.M.).
Dimitris EvangelopoulosNIHR Health Protection Research Unit (HPRU) on Health Impacts of Environmental Hazards at KCL in Partnership with Public Health England (PHE) and Imperial College London (ICL), UK (D.E., S.L., I.M., B.B., H.W.).
Shanon LimNIHR Health Protection Research Unit (HPRU) on Health Impacts of Environmental Hazards at KCL in Partnership with Public Health England (PHE) and Imperial College London (ICL), UK (D.E., S.L., I.M., B.B., H.W.).
Ian MudwayNIHR Health Protection Research Unit (HPRU) on Health Impacts of Environmental Hazards at KCL in Partnership with Public Health England (PHE) and Imperial College London (ICL), UK (D.E., S.L., I.M., B.B., H.W.).
Benjamin BarrattNIHR Health Protection Research Unit (HPRU) on Health Impacts of Environmental Hazards at KCL in Partnership with Public Health England (PHE) and Imperial College London (ICL), UK (D.E., S.L., I.M., B.B., H.W.).
Heather WaltonNIHR Health Protection Research Unit (HPRU) on Health Impacts of Environmental Hazards at KCL in Partnership with Public Health England (PHE) and Imperial College London (ICL), UK (D.E., S.L., I.M., B.B., H.W.).
Andrew J WebbFrom King's College London (KCL) British Heart Foundation (BHF) Centre, School of Cardiovascular Medicine and Sciences, Department of Clinical Pharmacology, National Institute for Health Research (NIHR) Biomedical Research Centre (BRC), Clinical Research Facility (CRF), Guy's and St Thomas' NHS Foundation Trust (GSTFT), London, UK (C.N.F., F.S., F.U., K.M., K.O.G., A.J.W.).
King's College London · GBPublic Health England · GB

Funding

Medical Research Council MR/S019669/1Wellcome Trust 204823/Z/16/Z
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Natural GasNitrogen DioxideAir Pollution, IndoorBiomarkersBlood PressureCookingCross-Over StudiesHealthy VolunteersHousehold ArticlesHumansInhalation ExposureNitritesTime FactorsUp-RegulationBiomarkersNatural GasNitritesNitrogen Dioxideair pollutionblood pressurenitritenitrogen dioxideparticulate matter

Identifiers

PMID32539547
PMCPMC7447162
OpenAlexW3035423923

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.