Evidence map›Paper›PMID 28575033›Full record

SynthesisPloS one2017

Preoperative platelet lymphocyte ratio as independent predictors of prognosis in pancreatic cancer: A systematic review and meta-analysis.

Wei Song, Chuan Tian, Kai Wang, Run-Jin Zhang, Shu-Bing Zou

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  20. Pancreatic Cancer and Platelets Crosstalk: A Potential Biomarker and Target.Frontiers in cell and developmental biology · 2021
    Review
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

5 authors.

Wei SongDepartment of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Chuan TianDepartment of Nuclear Medicine, Guizhou Provincial People's Hospital, Guiyang, China.
Kai WangDepartment of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Run-Jin ZhangDepartment of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Shu-Bing ZouDepartment of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecently, the preoperative platelet to lymphocyte ratio (PLR) has been found reported to predict oncologic outcomes in multiple malignancies. However, its prognostic value in patients with pancreatic cancer (PC) remains controversial. The aim of this study was to assess the prognostic value of preoperative PLR in PC.

methodsMEDLINE, EMBASE, and Cochrane databases were searched to identify studies evaluating the prognostic significance of preoperative PLR in PC. Pooled hazard ratios (HRs) for overall survival (OS) were calculated using fixed-effects/random-effects models.

resultsA total of eight studies comprising 1,904 patients with PC were included in the meta-analysis. The pooled analysis demonstrated that elevated PLR had an association with decreased OS (HR: 1.22, 95% CI: 1.04-1.43, p = 0.02). Subgroup analysis showed that a high PLR significantly predicted poor OS in Asian studies (HR: 1.25, 95% CI: 1.03-1.52, p = 0.02), patients with metastatic disease (HR: 1.34, 95% CI: 1.01-1.77, p = 0.04) and patients with PLR >150 (HR: 1.73, 95% CI: 1.21-2.49, p = 0.003).

conclusionsThe preoperative PLR may be a significant independent prognostic factor in patients with PC.

Indexed as

Blood PlateletsHumansLymphocytesPancreatic NeoplasmsPrognosis

Identifiers

PMID28575033
PMCPMC5456351

What OpenQuestion holds

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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.