Evidence map›Paper›PMID 23924273›Full record

SynthesisBJOG : an international journal of obstetrics and gynaecology2014

Frequency of the congenital transmission of Trypanosoma cruzi: a systematic review and meta-analysis.

E J Howard, X Xiong, Y Carlier, S Sosa-Estani, P Buekens

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BJOG : an international journal of obstetrics and gynaecology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 129 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
129citing papers in PubMed, 9 pooled it
11.0field-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

129 citing papers in PubMed, 9 syntheses or guidelines pooled it, 265 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Pooled it
  5. Pooled it
  6. Risk factors for vertical transmission of Chagas disease: A systematic review and meta-analysis.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2021
    Pooled it
  7. Screening forEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2020
    Pooled it
  8. Pooled it
  9. Pooled it
  10. Vaccines against chronicExpert review of vaccines · 2026
    Review
  11. Review
  12. Chagas disease: host responses, parasite evasion and vaccine advances.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2026
    Review
  13. MaternalbioRxiv : the preprint server for biology · 2026
    Article
  14. Placental Barrier Breakdown Induced byInternational journal of molecular sciences · 2025
    Article
  15. Article
  16. Review
  17. Observational
  18. Review
  19. Pathogens (Basel, Switzerland) · 2025
    Article
  20. Article

69 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

5 authors at 2 institutions in 2 countries.

E J HowardDepartment of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.
X Xiong
Y Carlier
S Sosa-Estani
P Buekens
Tulane University · USUniversité Libre de Bruxelles · BE

Funding

Congenital Transmission of Lineages I and II of Trypanasoma cruziR01AI083563 · NIAID · TULANE UNIVERSITY OF LOUISIANA · PI BUEKENS, PIERRE · 2010 to 2014
$2.7M
Training in Global Reproductive Epidemiology (TIGRE)T32HD057780 · NICHD · TULANE UNIVERSITY OF LOUISIANA · PI BUEKENS, PIERRE · 2009 to 2013
$801k
NIAID NIH HHS R01 AI083563NIAID NIH HHS R01AI083563NICHD NIH HHS T32 HD057780NICHD NIH HHS T32HD057780PHS HHS T03MC07649
6 · The paper itself

Abstract

backgroundChagas disease is caused by the parasite Trypanosoma cruzi and is endemic in much of Latin America. With increased globalisation and immigration, it is a risk in any country, partly through congenital transmission. The frequency of congenital transmission is unclear.

objectiveTo assess the frequency of congenital transmission of T. cruzi. SEARCH STRATEGY: PubMed, Journals@Ovid Full Text, EMBASE, CINAHL, Fuente Academica and BIREME databases were searched using seven search terms related to Chagas disease or T. cruzi and congenital transmission. SELECTION CRITERIA: The inclusion criteria were the following: Dutch, English, French, Portuguese or Spanish language; case report, case series or observational study; original data on congenital T. cruzi infection in humans; congenital infection rate reported or it could be derived. This systematic review included 13 case reports/series and 51 observational studies. DATA COLLECTION AND ANALYSIS: Two investigators independently collected data on study characteristics, diagnosis and congenital infection rate. The principal summary measure--the congenital transmission rate--is defined as the number of congenitally infected infants divided by the number of infants born to infected mothers. A random effects model was used. MAIN

resultsThe pooled congenital transmission rate was 4.7% (95% confidence interval: 3.9-5.6%). Countries where T. cruzi is endemic had a higher rate of congenital transmission compared with countries where it is not endemic (5.0% versus 2.7%).

conclusionsCongenital transmission of Chagas disease is a global problem. Overall risk of congenital infection in infants born to infected mothers is about 5%. The congenital mode of transmission requires targeted screening to prevent future cases of Chagas disease.

Indexed as

Trypanosoma cruziChagas DiseaseFemaleHumansInfant, NewbornInfectious Disease Transmission, VerticalPregnancyRisk FactorsChagas diseasecongenital infectionmeta-analysissystematic reviewTrypanosoma cruzi

Identifiers

PMID23924273
PMCPMC3914719
OpenAlexW2092388750

What OpenQuestion holds

Textmetadata
LicenceTDM
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.