Evidence map›Paper›PMID 32926538›Full record

SynthesisThoracic cancer2020

Prognostic and clinicopathological roles of programmed death-ligand 1 (PD-L1) expression in thymic epithelial tumors: A meta-analysis.

Hyun Min Koh, Bo Gun Jang, Hyun Ju Lee, Chang Lim Hyun

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Thoracic cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.1field-weighted citation impact, top 52% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
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

4 authors at 3 institutions in 1 country.

Hyun Min KohDepartment of Pathology, Gyeongsang National University Changwon Hospital, Changwon, Korea.ORCID 0000-0002-7457-7174
Bo Gun JangDepartment of Pathology, Jeju National University School of Medicine, Jeju, Korea.
Hyun Ju LeeDepartment of Pathology, Soonchunhyang University College of Medicine, Cheonan, Korea.ORCID 0000-0002-0335-5996
Chang Lim HyunDepartment of Pathology, Jeju National University School of Medicine, Jeju, Korea.ORCID 0000-0002-6740-1357
Jeju National University Hospital · KRChangwon National University · KRSoonchunhyang University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgrammed death-ligand 1 (PD-L1) is one of the immune checkpoint proteins, and plays an important role in the progression and microenvironment of cancer. PD-L1 expression has been associated with poor survival in many cancers. Several studies have also shown an association between PD-L1 expression and the prognosis of patients with thymic epithelial tumors (TETs). In this study, we systematically evaluated the prognostic and clinicopathological roles of PD-L1 expression in TETs.

methodsWe searched the literature through PubMed, Embase and Cochrane library and chose the eligible studies, and subsequently performed a meta-analysis to evaluate the prognostic and clinicopathological roles of PD-L1 expression in TETs.

resultsSix of the 75 articles found in the literature were selected. PD-L1 expression was significantly related to unfavorable overall survival (hazard ratio 1.52, 95% confidence interval [CI]: 1.01-2.30, P = 0.046) in TETs. PD-L1 expression was significantly associated with male gender (odds ratio [OR] 1.55, 95% CI: 1.08-2.22, P = 0.017) and higher Masaoka stage (OR 3.93, 95% CI: 2.44-6.32, P < 0.001).

conclusionsPD-L1 expression was correlated with unfavorable prognosis in TETs, indicating PD-L1 expression could help determine the prognosis of TET patients.

Indexed as

B7-H1 AntigenFemaleHumansMaleNeoplasms, Glandular and EpithelialPrognosisThymus NeoplasmsTumor MicroenvironmentB7-H1 AntigenMeta-analysisprognosisprogrammed death-ligand 1thymic epithelial tumor

Identifiers

PMID32926538
PMCPMC7605989
OpenAlexW3087199166

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.