Evidence map›Paper›PMID 34706948›Full record

ArticleBMJ open2021

Partial pressure of oxygen level at admission as a predictor of postoperative pneumonia after hip fracture surgery in a geriatric population: a retrospective cohort study.

Yahong Ji, Xiaoli Li, Yakang Wang, Li Cheng, Hua Tian, Na Li, Junning Wang

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 5 pooled it
5.2field-weighted citation impact, top 3% 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

11 citing papers in PubMed, 5 syntheses or guidelines pooled it, 29 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

7 authors at 1 institution in 1 country.

Yahong JiRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Xiaoli LiRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Yakang WangJoint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Li ChengRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Hua TianRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Na LiRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Junning WangRespiratory, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China wangjunningde@163.com.ORCID 0000-0002-7920-1010
Xi'an Honghui Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify whether the partial pressure of oxygen in arterial blood (PaO

designA retrospective cohort study.

settingThis is a retrospective chart review of POP after hip fracture surgery in China.

participantsIn training cohort, patients aged ≥65 years who had hip fracture surgery between 1 January 2018 and 30 November 2019. In the validation cohort, a series of patients who underwent hip fracture surgery between 1 January 2020 and 28 February 2020.

interventionsReceiver operating characteristic (ROC) analysis was used to obtain the area under the ROC curve (AUC) and cut-off values of PaO

resultsIn the training cohort, ROC curves were generated to compare the predictive performance of PaO

conclusionsThe current study revealed that the PaO

Indexed as

Hip FracturesPneumoniaAgedHumansOxygenPartial PressureRetrospective StudiesRisk FactorsOxygengeneral medicine (see internal medicine)geriatric medicinerespiratory infections

Identifiers

PMID34706948
PMCPMC8552163
OpenAlexW3210028017

What OpenQuestion holds

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LicenceCC BY-NC
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.