Evidence map›Paper›PMID 29368632›Full record

Observational studyCritical care (London, England)2018

Serum suPAR and syndecan-4 levels predict severity of community-acquired pneumonia: a prospective, multi-centre study.

Qiongzhen Luo, Pu Ning, Yali Zheng, Ying Shang, Bing Zhou, Zhancheng Gao

Registry-linked trialOpen access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Critical care (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03093220 (Molecular Typing of Adult Community-acquired Pneumonia in China), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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.

NCT03093220 unknown statusnot on this map

Molecular Typing of Adult Community-acquired Pneumonia in China

TypeobservationalSponsorPeking University People's HospitalRan2017 to 2018Enrolled500ConditionsRespiratory Infections, Genetic Disorder, Community-Acquired Infections, Host-Pathogen Interactions
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Qiongzhen LuoDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China.
Pu NingDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China.
Yali ZhengDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China.
Ying ShangDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China.
Bing ZhouDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China.
Zhancheng GaoDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, People's Republic of China. zcgao@bjmu.edu.cn.
Peking University · CNPeking University People's Hospital · CN

Funding

The National Key Research and Development Program of China 2016YFC0903800
6 · The paper itself

Abstract

backgroundCommunity-acquired pneumonia (CAP) is a major cause of death worldwide and occurs with variable severity. There are few studies focused on the expression of soluble urokinase-type plasminogen activator receptor (suPAR) and syndecan-4 in patients with CAP.

methodsA prospective, multi-centre study was conducted between January 2014 and December 2016. A total of 103 patients with severe CAP (SCAP), 149 patients with non-SCAP, and 30 healthy individuals were enrolled. Clinical data were recorded for all enrolled patients. Serum suPAR and syndecan-4 levels were determined by quantitative enzyme-linked immunosorbent assay. The t test and Mann-Whitney U test were used to compare between two groups; one-way analysis of variance and the Kruskal-Wallis test were used to compare multiple groups. Correlations were assessed using Pearson and Spearman tests. Area under the curve (AUCs), optimal threshold values, sensitivity, and specificity were calculated. Survival curves were constructed and compared by log-rank test. Regression analyses assessed the effect of multiple variables on 30-day survival.

resultssuPAR levels increased in all patients with CAP, especially in severe cases. Syndecan-4 levels decreased in patients with CAP, especially in non-survivors. suPAR and syndecan-4 levels were positively and negatively correlated with severity scores, respectively. suPAR exhibited high accuracy in predicting SCAP among patients with CAP with an AUC of 0.835 (p < 0.001). In contrast, syndecan-4 exhibited poor diagnostic value for predicting SCAP (AUC 0.550, p = 0.187). The AUC for predicting mortality in patients with SCAP was 0.772 and 0.744 for suPAR and syndecan-4, respectively; the respective prediction threshold values were 10.22 ng/mL and 6.68 ng/mL. Addition of both suPAR and syndecan-4 to the Pneumonia Severity Index significantly improved their prognostic accuracy, with an AUC of 0.885. Regression analysis showed that suPAR ≥10.22 ng/mL and syndecan-4 ≤ 6.68 ng/mL were reliable independent markers for prediction of 30-day survival.

conclusionsuPAR exhibits high accuracy for both diagnosis and prognosis of SCAP. Syndecan-4 can reliably predict mortality in patients with SCAP. Addition of both suPAR and syndecan-4 to a clinical scoring method could improve prognostic accuracy.

trial registrationClinicalTrials.gov, NCT03093220 . Registered on 28 March 2017 (retrospectively registered).

Indexed as

Predictive Value of TestsAdultAgedBiomarkersChinaCommunity-Acquired InfectionsFemaleHumansMaleMiddle AgedPneumoniaPrognosisProspective StudiesReceptors, Urokinase Plasminogen ActivatorRegression AnalysisSeverity of Illness IndexBiomarkersReceptors, Urokinase Plasminogen ActivatorSyndecan-4Community acquired pneumoniaMortalitySeveritysuPARSyndecan-4

Identifiers

PMID29368632
PMCPMC5784729
OpenAlexW2793048680

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.