Evidence map›Paper›PMID 34728475›Full record

Observational studyBMJ open respiratory research2021

Defining hypoxaemia from pulse oximeter measurements of oxygen saturation in well children at low altitude in Bangladesh: an observational study.

Eric D McCollum, Carina King, Salahuddin Ahmed, Abu A M Hanif, Arunangshu D Roy, Asmd Ashraful Islam, Tim Colbourn, Holly B Schuh, Amy Sarah Ginsburg, Shubhada Hooli and 5 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMJ open respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 12 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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

15 authors at 6 institutions in 4 countries.

Eric D McCollumGlobal Program in Respiratory Sciences, Eudowood Division of Pediatric Respiratory Sciences, Department of Pediatrics, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA emccoll3@jhmi.edu.
Carina KingDepartment of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
Salahuddin AhmedProjahnmo Research Foundation, Sylhet, Bangladesh.
Abu A M HanifProjahnmo Research Foundation, Sylhet, Bangladesh.
Arunangshu D RoyProjahnmo Research Foundation, Sylhet, Bangladesh.
Asmd Ashraful IslamProjahnmo Research Foundation, Sylhet, Bangladesh.ORCID 0000-0003-1597-4847
Tim ColbournGlobal Health Institute, University College London, London, UK.
Holly B SchuhDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
Amy Sarah GinsburgClinical Trial Center, University of Washington, Seattle, Washington, USA.
Shubhada HooliSection of Emergency Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA.
Nabidul H ChowdhuryProjahnmo Research Foundation, Sylhet, Bangladesh.
Syed J R RizviProjahnmo Research Foundation, Sylhet, Bangladesh.
Nazma BegumProjahnmo Research Foundation, Sylhet, Bangladesh.
Abdullah H BaquiHealth Systems Program, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
William CheckleyDivision of Pulmonary and Critical Care, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA.
Biomedical Research Foundation · BDJohns Hopkins University · USBaylor College of Medicine · USKarolinska Institutet · SEUniversity College London · GBUniversity of Washington · US

Funding

Pulse oximetry for childhood pneumonia in rural BangladeshK01TW009988 · FIC · JOHNS HOPKINS UNIVERSITY · PI MCCOLLUM, ERIC DOUGLASS · 2014 to 2018
$704k
FIC NIH HHS K01 TW009988
6 · The paper itself

Abstract

backgroundWHO defines hypoxaemia, a low peripheral arterial oxyhaemoglobin saturation (SpO

methodsWe prospectively enrolled well, children aged 3-35 months participating in a pneumococcal vaccine evaluation in Sylhet district, Bangladesh between June and August 2017. Trained health workers conducting community surveillance measured the SpO

resultsOur primary analytical sample included 1470 children (mean age 18.6±9.5 months). Median SpO

conclusionA SpO

Indexed as

AltitudeOxygen SaturationAdolescentBangladeshChildChild, PreschoolHumansHypoxiaInfantOximetrypaediatric lung disaesepneumoniarespiratory infection

Identifiers

PMID34728475
PMCPMC8565559
OpenAlexW3210819018

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.