Evidence map›Paper›PMID 29329293›Full record

SynthesisPLoS neglected tropical diseases2018

Cognitive deficits and educational loss in children with schistosome infection-A systematic review and meta-analysis.

Amara E Ezeamama, Amaya L Bustinduy, Allan K Nkwata, Leonardo Martinez, Noel Pabalan, Michael J Boivin, Charles H King

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 5 pooled it
11.5field-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

82 citing papers in PubMed, 5 syntheses or guidelines pooled it, 142 citations in OpenAlex.

  1. Pooled it
  2. SCORE Studies on the Impact of Drug Treatment on Morbidity due toThe American journal of tropical medicine and hygiene · 2020
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Five-Year Impact of Different Multi-Year Mass Drug Administration Strategies on ChildhoodThe American journal of tropical medicine and hygiene · 2019
    Trial
  9. Trial
  10. Article
  11. Article
  12. Research square · 2026
    Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

22 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

7 authors at 5 institutions in 3 countries.

Amara E EzeamamaDepartment of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, United States of America.ORCID 0000-0003-2164-8802
Amaya L BustinduyDepartment of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom.
Allan K NkwataDepartment of Epidemiology & Biostatistics, University of Georgia, Athens, Georgia, United States of America.
Leonardo MartinezDepartment of Epidemiology & Biostatistics, University of Georgia, Athens, Georgia, United States of America.
Noel PabalanCenter for Research and Development, Angeles University Foundation, Angeles City, The Philippines.
Michael J BoivinDepartment of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, United States of America.
Charles H KingCenter for Global Health and Diseases, PAHO/WHO Collaborating Centre for Research and Training for Schistosomiasis Elimination, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America.
University of Georgia · USAngeles University Foundation · PHCenter for Global Health · USLondon School of Hygiene & Tropical Medicine · GBMichigan United · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBy means of meta-analysis of information from all relevant epidemiologic studies, we examined the hypothesis that Schistosoma infection in school-aged children (SAC) is associated with educational loss and cognitive deficits. METHODOLOGY/PRINCIPAL

findingsThis review was prospectively registered in the PROSPERO database (CRD42016040052). Medline, Biosis, and Web of Science were searched for studies published before August 2016 that evaluated associations between Schistosoma infection and cognitive or educational outcomes. Cognitive function was defined in four domains-learning, memory, reaction time, and innate intelligence. Educational outcome measures were defined as attendance and scholastic achievement. Risk of bias (ROB) was evaluated using the Newcastle-Ottawa quality assessment scale. Standardized mean differences (SMD) and 95% confidence intervals (CI) were calculated to compare cognitive and educational measures for Schistosoma infected /not dewormed vs. uninfected/dewormed children. Sensitivity analyses by study design, ROB, and sequential exclusion of individual studies were implemented. Thirty studies from 14 countries, including 38,992 SAC between 5-19 years old, were identified. Compared to uninfected children and children dewormed with praziquantel, the presence of Schistosoma infection and/or non-dewormed status was associated with deficits in school attendance (SMD = -0.36, 95%CI: -0.60, -0.12), scholastic achievement (SMD = -0.58, 95%CI: -0.96, -0.20), learning (SMD = -0.39, 95%CI: -0.70, -0.09) and memory (SMD = -0.28, 95%CI: -0.52, -0.04) tests. By contrast, Schistosoma-infected/non-dewormed and uninfected/dewormed children were similar with respect to performance in tests of reaction time (SMD = -0.06, 95%CI: -0.42, 0.30) and intelligence (SMD = -0.25, 95%CI: -0.57, 0.06). Schistosoma infection-associated deficits in educational measures were robust among observational studies, but not among interventional studies. The significance of infection-associated deficits in scholastic achievement was sensitive to ROB. Schistosoma infection-related deficits in learning and memory tests were invariant by ROB and study design. CONCLUSION/SIGNIFICANCE: Schistosoma infection/non-treatment was significantly associated with educational, learning, and memory deficits in SAC. Early treatment of children in Schistosoma-endemic regions could potentially mitigate these deficits.

trial registrationClinicalTrials.gov CRD42016040052.

Indexed as

AdolescentAnimalsAnthelminticsChildChild, PreschoolCognitionCognitive DysfunctionHumansIntelligenceLearning DisabilitiesMemoryMemory and Learning TestsMemory DisordersPraziquantelReaction TimeSchistosomaAnthelminticsPraziquantel

Identifiers

PMID29329293
PMCPMC5766129
OpenAlexW2783986784

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.