Evidence map›Paper›PMID 34528202›Full record

SynthesisEnvironmental science and pollution research international2021

Association between Blastocystis sp. infection and immunocompromised patients: a systematic review and meta-analysis.

Ali Asghari, Zeinab Sadeghipour, Soheil Hassanipour, Zahra Abbasali, Hasan Ebrahimzadeh-Parikhani, Masoud Hashemzaei, Vahid Alimardani, Gholamreza Hatam

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Environmental science and pollution research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
5.9field-weighted citation impact, top 3% 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Prevalence, Genetic Diversity, and Risk Factors ofThe Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2026
    Review
  5. Article
  6. The Role ofPathogens (Basel, Switzerland) · 2025
    Review
  7. Article
  8. Foodborne concerns ofFood and waterborne parasitology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Prevalence and Genetic Characterization ofAnimals : an open access journal from MDPI · 2023
    Article
  13. Systematic Review and Meta-Analysis: Epidemiology of HumanTropical medicine and infectious disease · 2023
    Review
  14. Review
  15. Article
  16. Rare Occurrence ofJournal of clinical medicine · 2022
    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 5 institutions in 1 country.

Ali AsghariDepartment of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.ORCID https://orcid.org/0000-0002-4005-2687
Zeinab SadeghipourDepartment of Medical Parasitology and Mycology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.
Soheil HassanipourGastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.ORCID https://orcid.org/0000-0002-6661-4908
Zahra AbbasaliDepartment of Medical Parasitology and Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Hasan Ebrahimzadeh-ParikhaniDepartment of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Masoud HashemzaeiDepartment of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.ORCID https://orcid.org/0000-0002-2307-0816
Vahid AlimardaniDepartment of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.ORCID https://orcid.org/0000-0003-2133-5339
Gholamreza HatamBasic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. hatamghr@sums.ac.ir.ORCID http://orcid.org/0000-0002-7807-4793
Shiraz University of Medical Sciences · IRGuilan University of Medical Sciences · IRMedical University of Ilam · IRTarbiat Modares University · IRTehran University of Medical Sciences · IR

Funding

shiraz university of medical sciences 22097
6 · The paper itself

Abstract

The significance of opportunistic infections in immunocompromised patients and the enigmatic pathogenicity of Blastocystis directed us to conduct the first global systematic review and meta-analysis on Blastocystis prevalence, odds ratios (ORs), and subtypes distribution in various immunocompromised patients (HIV/AIDS, cancer and hemodialysis patients, as well as transplant recipients). The systematic searching procedure was done in Web of Science, PubMed, Scopus, and Google Scholar databases for relevant published literature until November 11, 2020. Random-effects model was utilized to calculate the weighted estimates and 95% confidence intervals (95% CIs). The computed pooled prevalence of Blastocystis inferred from 118 papers (128 datasets) on immunocompromised patients was 10.3% (95% CI: 8.7-12.2%), with 16.1% (95% CI: 11.3-22.2%), 12.5% (95% CI: 8.5-18%), 8.4% (95 % CI: 6.6-10.6%), and 6% (95% CI: 2.6-13.3%) for hemodialysis patients, cancer patients, HIV/AIDS patients, and transplant recipients, respectively. Based on 50 case-control studies (54 datasets), the highest ORs were associated with cancer [2.81 (95% CI: 1.24-6.38, P = 0.013)] and hemodialysis patients [2.78 (95% CI: 1.19-6.48, P = 0.018)]. The most frequent subtype being found in immunocompromised patients was ST3 [41.7% (95% CI: 31.4-52.7%)], followed by ST1 [31.7% (95% CI: 23.2-41.8%)] and ST2 [23.1% (95% CI: 14.8-34.1%)]. Also, the weighted frequency of Blastocystis in various subgroups (publication year, WHO regions, geographical distribution, continents, and country income) was analyzed separately. In total, the results of the present meta-analysis highlighted that one's immunodeficiency status is probably associated with an increased Blastocystis infection, underpinning strict preventive measures to be taken.

Indexed as

BlastocystisBlastocystis InfectionsFecesHumansImmunocompromised HostPrevalenceBlastocystis sp.Cancer patientsHemodialysis patientsHIV/AIDS patientsImmunocompromised patientsMeta-analysisPrevalenceSubtypesSystematic reviewTransplant recipients

Identifiers

PMID34528202
OpenAlexW3200591152

What OpenQuestion holds

Textmetadata
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.