Evidence map›Paper›PMID 32711469›Full record

ArticleBMC nephrology2020

Elevated serum iron level is a predictor of prognosis in ICU patients with acute kidney injury.

Jie Shu, Yufeng Hu, Xueshu Yu, Jiaxiu Chen, Wenwei Xu, Jingye Pan

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

17 citing papers in PubMed, 21 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

6 authors at 1 institution in 1 country.

Jie ShuDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China.
Yufeng HuDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China.
Xueshu YuDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China.
Jiaxiu ChenDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China.
Wenwei XuDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China.
Jingye PanDepartment of Intensive Care Unit, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China. wmupanjingye@126.com.ORCID 0000-0002-2367-1275
Wenzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccumulation of iron is associated with oxidative stress, inflammation, and regulated cell death processes that contribute to the development of acute kidney injury (AKI). We aimed to investigate the association between serum iron levels and prognosis in intensive care unit (ICU) patients with AKI.

methodsA total of 483 patients with AKI defined as per the Kidney Disease: Improving Global Guidelines were included in this retrospective study. The data was extracted from the single-centre Medical Information Mart for Intensive Care III database. AKI patients with serum iron parameters measured upon ICU admission were included and divided into two groups (low group and high group). The prognostic value of serum iron was analysed using univariate and multivariate Cox regression analysis.

resultsThe optimal cut-off value for serum iron was calculated to be 60 μg/dl. Univariable Cox regression analysis showed that serum iron levels were significantly correlated with prognosis of AKI patients. After adjusting for possible confounding variables, serum iron levels higher than 60 μg/dl were associated with increases in 28-day (hazard [HR] 1.832; P <  0.001) and 90-day (HR 1.741; P <  0.001) mortality, as per multivariable Cox regression analysis.

conclusionsHigh serum iron levels were associated with increased short- and long-term mortality in ICU patients with AKI. Serum iron levels measured upon admission may be used for predicting prognosis in AKI patients.

Indexed as

MortalityAcute Kidney InjuryAdolescentAdultCritical IllnessDisease ProgressionFemaleHumansIntensive Care UnitsIronMaleMiddle AgedMultivariate AnalysisPrognosisProportional Hazards ModelsRetrospective StudiesIronAcute kidney injuryIronMortalityPredictor

Identifiers

PMID32711469
PMCPMC7382811
OpenAlexW3045038276

What OpenQuestion holds

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LicenceCC BY
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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.