Evidence map›Paper›PMID 32910207›Full record

SynthesisInternational journal of colorectal disease2021

Clinicopathological and prognostic significance of PD-L1 expression in colorectal cancer: a meta-analysis.

Shuxia Wang, Bo Yuan, Yun Wang, Mingyang Li, Xibo Liu, Jing Cao, Changtian Li, Jihong Hu

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in International journal of colorectal disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 16% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 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

8 authors at 1 institution in 1 country.

Shuxia WangPublic Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Bo YuanBasic Medical School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Yun WangPublic Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Mingyang LiPublic Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Xibo LiuPublic Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Jing CaoPublic Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Changtian LiBasic Medical School, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
Jihong HuCenter of Research and Experiment, Gansu University of Chinese Medicine, Lanzhou, 730000, China. hujihonghappy@163.com.ORCID http://orcid.org/0000-0003-0391-963X
Gansu University of Traditional Chinese Medicine · CN

Funding

National Natural Science Foundation of China 81960614
6 · The paper itself

Abstract

purposeTo systematically evaluate the correlation between PD-L1 expression and clinicopathological features and prognosis of colorectal cancer (CRC).

methodsSeven databases (PubMed, Cochrane Library, EMBASE, Web of Science, CBM, Wanfang, and CNKI) were searched through May 2020. Risk of bias and quality of evidence were assessed by using the Newcastle-Ottawa scale (NOS), and meta-analysis was carried out by using the Review Manager 5.3 software on the studies with the quality evaluation scores ≥ 6. Meta-regression analysis was used to determine the independent role of PD-L1 expression on CRC prognosis after adjusting clinicopathological features and treatment methods.

resultsA total of 8823 CRC patients in 32 eligible studies. PD-L1 expression was correlated with lymphatic metastasis (yes/no; OR = 1.24, 95% CI (1.11, 1.38)), diameter of tumor (≥ 5 cm/< 5 cm; OR = 1.34, 95% CI (1.06, 1.70)), differentiation (high-middle/low; OR = 0.68, 95% CI (0.53, 0.87)), and vascular invasion (yes/no; OR = 0.80, 95% CI (0.69, 0.92)). PD-L1 expression shortened the overall survival (hazard ratio (HR) = 1.93, 95% CI (1.66, 2.25)), disease-free survival (HR = 1.76, 95% CI (1.50, 2.07)), and progression-free survival (HR = 1.93, 95% CI (1.55, 2.41)). Meta-regression showed that PD-L1 expression played a significant role on poor CRC OS (HR = 1.95, 95% CI (1.92, 3.98)) and disease-free survival (HR = 2.14, 95% CI (0.73, 4.52)).

conclusionPD-L1 expression independently predicted a poor prognosis of CRC.

Indexed as

B7-H1 AntigenColorectal NeoplasmsBiomarkers, TumorDisease-Free SurvivalHumansPrognosisB7-H1 AntigenBiomarkers, TumorClinicopathological featuresColorectal cancer (CRC)Meta-analysisPrognosisProgrammed death ligand-1 (PD-L1)

Identifiers

PMID32910207
PMCPMC7782388
OpenAlexW3084461342

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.