Evidence map›Paper›PMID 32168351›Full record

SynthesisPLoS neglected tropical diseases2020

The global seroprevalence of anti-Toxoplasma gondii antibodies in women who had spontaneous abortion: A systematic review and meta-analysis.

Tooran Nayeri, Shahabeddin Sarvi, Mahmood Moosazadeh, Afsaneh Amouei, Zahra Hosseininejad, Ahmad Daryani

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 6 pooled it
7.0field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 6 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
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  7. Seroprevalence and molecular detection ofFood and waterborne parasitology · 2026
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  8. Molecular Identification ofJournal of parasitology research · 2026
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  14. Identification of novel biomarkers for anti-Frontiers in microbiology · 2024
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  20. Modeling the human placental barrier to understandFrontiers in cellular and infection microbiology · 2023
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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

6 authors at 1 institution in 1 country.

Tooran NayeriToxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
Shahabeddin SarviToxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
Mahmood MoosazadehHealth Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran.
Afsaneh AmoueiToxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
Zahra HosseininejadToxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
Ahmad DaryaniToxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.ORCID 0000-0001-8571-5803
Mazandaran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundToxoplasma gondii (T. gondii) is an intracellular pathogen that can lead to abortion in pregnant women infected with this parasite. Therefore, the present study aimed to estimate the global seroprevalence of anti-T. gondii antibodies in women who had spontaneous abortion based on the results of published articles and evaluate the relationship between seroprevalence of anti-T. gondii antibodies and abortion via a systematical review and meta-analysis.

methodsDifferent databases were searched in order to gain access to all studies on the seroprevalence of anti- T. gondii antibodies in women who had spontaneous abortion and association between seroprevalence of anti-T. gondii antibodies and abortion published up to April 25th, 2019. Odds ratio (OR) and the pooled rate seroprevalence of T. gondii with a 95% confidence interval (CI) were calculated using the random effects model.

resultsIn total, 8 cross-sectional studies conducted on 1275 women who had abortion in present pregnancy, 40 cross-sectional studies performed on 9122 women who had a history of abortion, and 60 articles (involving 35 cross-sectional studies including 4436 women who had spontaneous abortion as case and 10398 as control and 25 case-control studies entailing 4656 cases and 3178 controls) were included for the final analyses. The random-effects estimates of the prevalence of anti-T. gondii IgG antibody in women who had abortion in present pregnancy and women who had a history of abortion were 33% (95% CI: 17%-49%) and 43% (95% CI: 27%-60%), respectively. In addition, the pooled OR for anti-T. gondii IgG antibody in cross-sectional and case-control studies among women who had spontaneous abortion were 1.65 (95% CI: 1.31-2.09) and 2.26 (95% CI: 1.56-3.28), respectively. Also, statistical analysis showed that the pooled OR of the risk of anti-T. gondii IgM antibody 1.39 (95% CI: 0.61-3.15) in cross-sectional and 4.33 (95% CI: 2.42-7.76) in case-control studies.

conclusionBased on the results of the current study, T. gondii infection could be considered a potential risk factor for abortion. It is recommended to carry out further and more comprehensive investigations to determine the effect of T. gondii infection on abortion to prevent and control toxoplasmosis among pregnant women around the world.

Indexed as

Abortion, SpontaneousAdolescentAdultAntibodies, ProtozoanCross-Sectional StudiesFemaleGlobal HealthHumansMiddle AgedPregnancySeroepidemiologic StudiesToxoplasmaToxoplasmosisYoung AdultAntibodies, Protozoan

Identifiers

PMID32168351
PMCPMC7069604
OpenAlexW3012136738

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.