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


ABSTRACT: OBJECTIVE:Our study aimed to evaluate the prognostic and clinicopathological significance of pretreatment mean platelet volume (MPV) on cancer by using meta-analysis of published studies. DESIGN:Meta-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. RESULTS:A 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). CONCLUSIONS:Pretreatment MPV level is of no clearly prognostic significance in cancers and no significant association with clinicopathological parameters of patients with cancers.

SUBMITTER: Chen X 

PROVIDER: S-EPMC7592286 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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

Chen Xin X   Li Jing J   Zhang Xunlei X   Liu Yushan Y   Wu Jindong J   Li Yangcheng Y   Cui Xiaopeng X   Jiang Xiaohui X  

BMJ open 20201027 10


<h4>Objective</h4>Our study aimed to evaluate the prognostic and clinicopathological significance of pretreatment mean platelet volume (MPV) on cancer by using meta-analysis of published studies.<h4>Design</h4>Meta-analysis.<h4>Data sources</h4>Relevant studies available before 22 December 2019 were identified by searching MEDLINE, EMBASE.<h4>Eligibility criteria</h4>All published studies that assessed the prognostic and clinicopathological significance of pretreatment MPV on cancer were include  ...[more]

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