Evidence map›Paper›PMID 27707823›Full record

ArticleBMJ open2016

Toxoplasma gondii seroprevalence in the Portuguese population: comparison of three cross-sectional studies spanning three decades.

Maria João Gargaté, Idalina Ferreira, Anabela Vilares, Susana Martins, Carlos Cardoso, Susana Silva, Baltazar Nunes, João Paulo Gomes

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Evolution ofJournal of parasitology research · 2026
    Review
  3. Anti-Pathogens (Basel, Switzerland) · 2023
    Review
  4. Seroprevalence ofEpidemiology and infection · 2023
    Article
  5. Article
  6. Screening for the Detection ofLife (Basel, Switzerland) · 2022
    Article
  7. Seroprevalence and Risk Factors forAnimals : an open access journal from MDPI · 2022
    Article
  8. Article
  9. Prevalence of Antibodies toPathogens (Basel, Switzerland) · 2021
    Article
  10. National perinatal survey demonstrates a decreasing seroprevalence ofEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2021
    Review
  11. Review
  12. Article
  13. Seroepidemiology of Infection withIranian journal of parasitology
    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

8 authors at 1 institution in 1 country.

Maria João GargatéNational Reference Laboratory of Parasitic and Fungal Infections, National Institute of Health, Lisbon, Portugal.
Idalina FerreiraNational Reference Laboratory of Parasitic and Fungal Infections, National Institute of Health, Lisbon, Portugal.
Anabela VilaresNational Reference Laboratory of Parasitic and Fungal Infections, National Institute of Health, Lisbon, Portugal.
Susana MartinsNational Reference Laboratory of Parasitic and Fungal Infections, National Institute of Health, Lisbon, Portugal.
Carlos CardosoClinical laboratory Dr. Joaquim Chaves, Lisbon, Portugal.
Susana SilvaDepartment of Epidemiology, National Institute of Health, Lisbon, Portugal.
Baltazar NunesDepartment of Epidemiology, National Institute of Health, Lisbon, Portugal.
João Paulo GomesDepartment of Infectious Diseases, National Institute of Health, Lisbon, Portugal.
National Institute of Health Dr. Ricardo Jorge · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundToxoplasma gondii is an obligate intracellular protozoan infecting up to one-third of the world's population, constituting a life threat if transmitted from mother to child during pregnancy. In Portugal, there is a lack of knowledge of the current epidemiological situation, as the unique toxoplasmosis National Serological Survey was performed in 1979/1980.

methodsWe studied the seroprevalence trends in the Portuguese general population over the past 3 decades, by assessing chronological spread cross-sectional studies, with special focus on women of childbearing age, by age group, region and gender.

resultsThe T. gondii overall seroprevalence decreased from 47% in 1979/1980 to 22% (95% CI 20% to 24%) in 2013. Generally, we observed that the prevalence of T. gondii IgG increased significantly with age and it decreased over time, both in the general population and in the childbearing women (18% prevalence in 2013).

conclusionsThe scenario observed for the latter indicates that more than 80% of childbearing women are susceptible to primary infection yielding a risk of congenital toxoplasmosis and respective sequelae. Since there is no vaccine to prevent human toxoplasmosis, the improvement of primary prevention constitutes a major tool to avoid infection in such susceptible groups.

Indexed as

AdolescentAdultChildChild, PreschoolCross-Sectional StudiesFemaleHumansImmunoglobulin GInfantMaleMiddle AgedPortugalPregnancyPrevalenceSeroepidemiologic StudiesToxoplasmaImmunoglobulin GEPIDEMIOLOGYINFECTIOUS DISEASESPARASITOLOGY

Identifiers

PMID27707823
PMCPMC5073473
OpenAlexW2528073107

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.