Evidence map›Paper›PMID 31609966›Full record

SynthesisPLoS neglected tropical diseases2019

Acute Toxoplasma infection in pregnant women worldwide: A systematic review and meta-analysis.

Ali Rostami, Seyed Mohammad Riahi, Despina G Contopoulos-Ioannidis, H Ray Gamble, Yadolah Fakhri, Malihe Nourollahpour Shiadeh, Masoud Foroutan, Hamed Behniafar, Ali Taghipour, Yvonne A Maldonado and 2 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 7 pooled it
13.1field-weighted citation impact, top 1% 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

68 citing papers in PubMed, 7 syntheses or guidelines pooled it, 141 citations in OpenAlex.

  1. Systematic review and modelling ofEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Prevalence of Cryptosporidium spp. in water: a global systematic review and meta-analysis.Environmental science and pollution research international · 2021
    Pooled it
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  8. Article
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  16. Review
  17. Epidemiology and infection · 2025
    Article
  18. Congenital toxoplasmosis in infants from chronically infected mothers: report of two cases.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2025
    Article
  19. Frontiers in cellular and infection microbiology · 2025
    Article
  20. Article

8 more citing papers are in PubMed but not listed here.

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

12 authors at 9 institutions in 3 countries.

Ali RostamiInfectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.ORCID 0000-0002-1358-1321
Seyed Mohammad RiahiCardiovascular Diseases Research Center, Department of Epidemiology and Biostatistics, Faculty of Health, Birjand University of Medical Sciences, Birjand, Iran.
Despina G Contopoulos-IoannidisDepartment of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, California, United States of America.
H Ray GambleNational Academy of Sciences, Washington, DC, United States of America.
Yadolah FakhriDepartment of Environmental Health Engineering, Student Research Committee, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Malihe Nourollahpour ShiadehSexual and Reproductive Health Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
Masoud ForoutanDepartment of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.ORCID 0000-0002-8661-7217
Hamed BehniafarDepartment of Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Ali TaghipourDepartment of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Yvonne A MaldonadoDepartment of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, California, United States of America.
Ali H MokdadDepartment of Health Metrics Science and the Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America.
Robin B GasserDepartment of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, Australia.
Shahid Beheshti University of Medical Sciences · IRStanford University · USTarbiat Modares University · IRBabol University of Medical Sciences · IRBirjand University of Medical Sciences · IRMazandaran University of Medical Sciences · IRNational Academy of Sciences · USThe University of Melbourne · AUUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAcute Toxoplasma infection (ATI) during pregnancy, if left untreated, can cause severe adverse outcomes for the fetus and newborn. Here, we undertook a meta-analysis to estimate the worldwide prevalence of ATI in pregnant women.

methodsWe searched international databases for studies published between January 1988 and November 2018. We included population-based cross-sectional and prospective cohort studies that reported the prevalence of ATI in pregnant women. Data were synthesized using a random effect model to calculate the overall prevalence of ATI (with a 95% CI) in six WHO regions and globally. We also performed linear meta-regression analyses to investigate associations of maternal, socio-demographic, geographical and climate parameters with the prevalence of ATI.

resultsIn total, 217 studies comprising 902,228 pregnant women across 74 countries were included in the meta-analysis. The overall prevalence of ATI in pregnant women globally was 1.1% (95% CI: 0.9-1.2%). In studies where more strict criteria for ATI were used, the overall prevalence was 0.6% (95% CI: 0.4-0.7%). The prevalence was highest in the Eastern Mediterranean region (2.5%; 95%CI: 1.7-3.4%) and lowest in the European region (0.5%; 95% CI: 0.4-0.7%). A significantly higher prevalence of ATI was found in countries with lower income levels (P = 0.027), lower human development indices (P = 0.04), higher temperatures (P = 0.02) and lower latitudes (P = 0.005) and longitudes (P = 0.02).

conclusionsThe risk of acquiring ATI during gestation is clinically important and preventive measures to avoid exposure of pregnant women to Toxoplasma infection should be strictly applied.

Indexed as

PregnancyAntibodies, ProtozoanDatabases, FactualFemaleHumansPregnancy Complications, InfectiousPrevalenceToxoplasmaToxoplasmosisAntibodies, Protozoan

Identifiers

PMID31609966
PMCPMC6822777
OpenAlexW2979705630

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.