Evidence map›Paper›PMID 33109647›Full record

SynthesisBMJ open2020

Prognostic and clinicopathological significance of pretreatment mean platelet volume in cancer: a meta-analysis.

Xin Chen, Jing Li, Xunlei Zhang, Yushan Liu, Jindong Wu, Yangcheng Li, Xiaopeng Cui, Xiaohui Jiang

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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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.

Xin Chen *Department of General Surgery, Nantong Tumor Hospital, Nantong, China.ORCID 0000-0002-8344-4023
Jing Li *Cancer Research Center Nantong, Nantong Tumor Hospital, Nantong, China.
Xunlei Zhang *Department of Oncology, Nantong Tumor Hospital, Nantong, China.
Yushan LiuDepartment of Pathology, Nantong Tumor Hospital, Nantong, China.
Jindong WuDepartment of General Surgery, Nantong Tumor Hospital, Nantong, China.
Yangcheng LiDepartment of General Surgery, Nantong Tumor Hospital, Nantong, China.
Xiaopeng CuiDepartment of Gastrointestinal Surgery, Nantong University Affiliated Hospital, Nantong, China jxhyjl@163.com cxp@ntu.edu.cn.
Xiaohui JiangDepartment of General Surgery, Nantong Tumor Hospital, Nantong, China jxhyjl@163.com cxp@ntu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOur study aimed to evaluate the prognostic and clinicopathological significance of pretreatment mean platelet volume (MPV) on cancer by using meta-analysis of published studies.

designMeta-analysis. DATA SOURCES: Relevant studies available before 22 December 2019 were identified by searching MEDLINE, EMBASE. ELIGIBILITY CRITERIA: All published studies that assessed the prognostic and clinicopathological significance of pretreatment MPV on cancer were included. DATA EXTRACTION AND SYNTHESIS: Studies were identified and extracted by two reviewers independently. The HR/OR and its 95% CIs of survival outcomes and clinicopathological parameters were calculated.

resultsA total of 38 eligible studies (41 subsets) with 9894 patients with cancer were included in the final meta-analysis. MPV level was not significantly associated with both overall survival (HR 0.98, 95% CI 0.84 to 1.14) and disease-free survival (HR 1.22, 95% CI 0.86 to 1.73) of patients with cancer. Neither advanced nor mixed-stage tumour patients showed significant association between MPV and overall survival (HR 1.36, 95% CI 0.96 to 1.94, HR 0.90, 95% CI 0.74 to 1.09). However, high MPV had the strongest relationship with poor overall survival (HR 2.01; 95% CI 1.08 to 3.41) in gastric cancer, followed by pancreatic cancer (HR 1.54; 95% CI 1.31 to 1.82). Whereas in the subgroup using receiver operating characteristic curve method to define cut-off values, low MPV was significantly related to poor overall survival (HR 0.78, 95% CI 0.64 to 0.95). In addition, MPV had no significant association with age (OR 0.96, 95% CI 0.90 to 1.02), sex (OR 1.04, 95% CI 1.00 to 1.09), depth of cancer invasion (OR 0.90, 95% CI 0.77 to 1.04) and tumour stage (OR 0.91, 95% CI 0.78 to 1.07).

conclusionsPretreatment MPV level is of no clearly prognostic significance in cancers and no significant association with clinicopathological parameters of patients with cancers.

Indexed as

Mean Platelet VolumeStomach NeoplasmsHumansPrognosisProgression-Free SurvivalROC Curveadult oncologyhaematologyoncology

Identifiers

PMID33109647
PMCPMC7592286

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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.