Evidence map›Paper›PMID 42054663›Full record

ArticleRambam Maimonides medical journal2026

Why Is PaO

Stephany Ivonne Briones Alvarado, Walther Iván Girón Matute

Abstract read
In one paragraph

Article in Rambam Maimonides medical journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

2 authors.

Stephany Ivonne Briones AlvaradoDepartment of Respiratory Medicine, Gregorio Marañón General University Hospital, Madrid, Spain.
Walther Iván Girón MatuteDepartment of Respiratory Medicine, Gregorio Marañón General University Hospital, Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic hypoxemia in patients with COPD is associated with increased morbidity and mortality. Although arterial partial pressure of oxygen (PaO

objectiveThis study aimed to evaluate whether or not CaO

methodsThis retrospective observational cohort study included 147 COPD patients aged ≥45 years. Patients were categorized according to CaO

resultsA total of 66 deaths (45.2%) occurred in the study cohort. Mortality was highest in the low CaO

conclusionsThe CaO

Identifiers

PMID42054663
PMCPMC13124155

What OpenQuestion holds

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Registered trials

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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.