Evidence map›Paper›PMID 30986206›Full record

Observational studyPloS one2019

Retrospective study on the usefulness of pulse oximetry for the identification of young children with severe illnesses and severe pneumonia in a rural outpatient clinic of Papua New Guinea.

Julien Blanc, Isabella Locatelli, Patricia Rarau, Ivo Mueller, Blaise Genton, Noémie Boillat-Blanco, Mario Gehri, Nicolas Senn

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 22% 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, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

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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

8 authors at 4 institutions in 5 countries.

Julien BlancDepartment of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.ORCID 0000-0001-7537-2763
Isabella LocatelliDepartment of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.
Patricia RarauVector Borne Disease Unit, PNG Institute of Medical Research, Madang (MAD), Papua New Guinea.
Ivo MuellerVector Borne Disease Unit, PNG Institute of Medical Research, Madang (MAD), Papua New Guinea.
Blaise GentonDepartment of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.
Noémie Boillat-BlancoDepartment of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.
Mario GehriChildren's Hospital, Lausanne, Switzerland.
Nicolas SennDepartment of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland.
University of Lausanne · CHInstitut Pasteur · FRPapua New Guinea Institute of Medical Research · PGSwiss Tropical and Public Health Institute · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis secondary analysis of data of a randomized controlled trial (RCT) retrospectively investigated the performance of pulse oximetry in identifying children with severe illnesses, with and without respiratory signs/symptoms, in a cohort of children followed for morbid episodes in an intervention trial assessing the efficacy of Intermittent Preventive Treatment for malaria in infants (IPTi) in Papua New Guinea (PNG) from June 2006 to May 2010.

settingThe IPTi study was conducted in a paediatric population visiting two health centres on the north coast of PNG in the Mugil area of the Sumkar District.

participantsA total of 669 children visited the clinic and a total of 1921 illness episodes were recorded. Inclusion criteria were: age between 3 and 27 months, full clinical record (signs/symptoms) and pulse oximetry used systematically to assess sick children at all visits. Children were excluded if they visited the clinic in the previous 14 days. OUTCOMES: The outcome measures were severe illness, severe pneumonia, pneumonia, defined by the Integrated Management of Childhood Illness (IMCI) definitions, and hospitalization.

resultsOut of 1921 illness episodes, 1663 fulfilled the inclusion criteria. A total of 139 severe illnesses were identified, of which 93 were severe pneumonia. The ROC curves of pulse oximetry (continuous variable) showed an AUC of 0.63, 0.68 and 0.65 for prediction of severe illness, severe pneumonia and hospitalization, respectively. Pulse oximetry allowed better discrimination between severe and non-severe illness, severe and non-severe pneumonia, admitted and non-admitted patients, in children ≤12-months of age relative to older patients. For the threshold of peripheral arterial oxygen saturation ≤ 94% measured by pulse oximetry (SpO2), unadjusted odds ratios for severe illness, severe pneumonia and hospitalization were 6.1 (95% Confidence Interval (CI) 3.9-9.8), 8.5 (4.9-14.6) and 5.9 (3.4-10.3), respectively.

conclusionPulse oximetry was helpful in identifying children with severe illness in outpatient facilities in PNG. A SpO2 of 94% seems the most discriminative threshold. Considering its affordability and ease of use, pulse oximetry could be a valuable additional tool assisting the decision to admit for treatment.

Indexed as

OximetryAmbulatory CareChild, PreschoolCommunity Health CentersFeasibility StudiesFemaleHealth Plan ImplementationHumansHypoxiaInfantMalePapua New GuineaPneumoniaRandomized Controlled Trials as TopicRetrospective StudiesRural Health Services

Identifiers

PMID30986206
PMCPMC6464326
OpenAlexW2938294407

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.