Evidence map›Paper›PMID 35082929›Full record

ArticleDisease markers2022

Red Cell Distribution Width to Platelet Ratio Is Associated with Increasing In-Hospital Mortality in Critically Ill Patients with Acute Kidney Injury.

Jiayuan Wu, Liutao Huang, Hairong He, Yumei Zhao, Dongdong Niu, Jun Lyu

Open access · hybridAbstract read
In one paragraph

Article in Disease markers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 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 2 institutions in 1 country.

Jiayuan WuClinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061 Shaanxi, China.ORCID https://orcid.org/0000-0002-4626-2773
Liutao HuangDepartment of Nephrology, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001 Guangdong, China.
Hairong HeClinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061 Shaanxi, China.
Yumei ZhaoClinical Research Service Center, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001 Guangdong, China.
Dongdong NiuClinical Research Service Center, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001 Guangdong, China.
Jun LyuClinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061 Shaanxi, China.ORCID https://orcid.org/0000-0002-2237-8771
Guangdong Medical College · CNFirst Affiliated Hospital of Xi'an Jiaotong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInflammation plays a key role in the pathophysiology and progression of acute kidney injury (AKI). Red cell distribution width (RDW) to platelet ratio (RPR) is a novel inflammatory index, and its prognostic effect on critically ill patients with AKI is rarely investigated. This work is aimed at investigating the association between RPR and in-hospital mortality in these patients.

methodsData were extracted from the Medical Information Mart for Intensive Care III database. All-cause death during hospitalization was selected as the primary outcome. Receiver operating characteristic (ROC) curve was used to determine the optimal cut-off value, and the area under the curve (AUC) was applied to compare predictive ability among different indices. Cox proportional hazard models were utilized to assess the association between RPR and in-hospital mortality. Restricted cubic spline analysis for multivariate Cox model was performed to explore the shape of the relationship between RPR and mortality.

resultsA total of 24,166 critically ill patients with AKI were included. The relationship of RPR and in-hospital mortality was nonlinear with a trend to rise rapidly and then gradually. For mortality prediction, RPR had the optimal cut-off value of 0.093, of which the AUC was 0.791 (95% confidence interval (CI): 0.773-0.810), which was higher than those of RDW, platelet, sequential organ failure assessment score, simplified acute physiology score II, neutrophil to lymphocyte ratio, and platelet to lymphocytes ratio. After adjustments for various confounders, high RPR showed a significant association with increased mortality with hazard ratios of 1.46 (95% CI: 1.40-1.55) for categorical variable and 1.88 (95% CI: 1.80-1.97) for continuous variables in the fully adjusted model.

conclusionsElevated RPR on admission is substantially associated with high risk of in-hospital mortality in critically ill patients with AKI and thus may serve as a novel predictor of prognosis for these patients.

Indexed as

Erythrocyte IndicesSeverity of Illness IndexAcute Kidney InjuryAdultAgedCritical IllnessFemaleHospital MortalityHumansMaleMiddle AgedPrognosisRetrospective StudiesROC Curve

Identifiers

PMID35082929
PMCPMC8786548
OpenAlexW4205417753

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LicenceCC BY
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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.