Evidence map›Paper›PMID 39778007›Full record

SynthesisImmunity, inflammation and disease2025

The Predictive Significance of Platelet-to-Lymphocyte Ratio for Miscarriage: A Systematic Review and Meta-Analysis.

Xiaoyi Wang, Yanfang Zhao, Yangyang Fan, Yun Liu

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Immunity, inflammation and disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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

2 citing papers in PubMed.

  1. Article
  2. 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.

Xiaoyi WangObstetrics Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China.
Yanfang ZhaoObstetrics Department, Weinan Maternal and Child Health Hospital, Weinan, Shaanxi, China.
Yangyang FanObstetrics Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China.
Yun LiuObstetrics Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China.ORCID 0009-0004-1984-0680

Funding

The authors received no specific funding for this work.
6 · The paper itself

Abstract

backgroundMiscarriage is a common complication of pregnancy, and its underlying pathophysiologic mechanisms remains unclear. The platelet-to-lymphocyte ratio (PLR), a prothrombotic and inflammatory marker, has been controversially discussed as a potential predictor of miscarriage. This systematic review and meta-analysis aimed to assess the predictive significance of the PLR in women with miscarriage compared to healthy pregnancies. MATERIAL AND

methodsRelevant studies were systematically searched in PubMed, Embase, Web of Sciencey, and Cochrane Library up to December 31, 2023. A systematic review and meta-analysis following PRISMA guidelines was conducted. Articles were identified, screened, and evaluated for quality to determine the predictive value of PLR for miscarriage.

resultsFourteen eligible articles, comprising a total of 3745 patients, were included in the meta-analysis. The pooled analysis found comparable PLR levels between miscarriage and non-miscarriage groups (SMD = 0.25; 95% Confidence Interval (CI): -0.05 to 0.54). Subgroup analysis revealed significant differences in PLR levels in the missed miscarriage group (SMD = 0.29; 95% CI: 0.01-0.56). and in studies with sample sizes smaller than 200 (SMD = 0.31; 95% CI: 0.05-0.56). Other subgroups did not exhibit significant differences. Subgroup analysis of PLR levels and miscarriage risk demonstrated no significant differences across all subgroups.

conclusionPLR is not a reliable predictor of miscarriage in general. However, for missed miscarriage cases, elevated PLR levels may serve as a practical and cost-effective marker for prediction.

Indexed as

Abortion, SpontaneousBlood PlateletsLymphocytesBiomarkersFemaleHumansLymphocyte CountPlatelet CountPredictive Value of TestsPregnancyPrognosisBiomarkersearly miscarriagemiscarriagemissed miscarriageplatelet‐to‐lymphocyte ratioprediction

Identifiers

PMID39778007
PMCPMC11705396

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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.