Evidence map›Paper›PMID 42529747›Full record

ReviewGastroenterology and hepatology from bed to bench2026

Barrett's esophagus around the world: a systematic review and predictive modeling study.

Amirhossein Hajialigol, Bennaz Nouri, Navid Emamhassani, Fahimeh Farahani, Saeede Mahmoudnia, Mostafa Qorbani, Mahsa Mohammadi, Mohsen Rajabnia

Abstract readReview
In one paragraph

Review in Gastroenterology and hepatology from bed to bench, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Amirhossein HajialigolAlborz Office of Universal Scientific Education and Research Network (USERN), Alborz University of Medical Sciences, Karaj, Iran.
Bennaz NouriSchool of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Navid EmamhassaniSchool of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Fahimeh FarahaniSchool of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Saeede MahmoudniaSchool of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Mostafa QorbaniNon-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Mahsa MohammadiNon-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Mohsen RajabniaNon-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aim: This study aimed to synthesize evidence on the prevalence of Barrett's esophagus (BE), estimate its global burden, and examine variation across studies. Background: Accurate BE prevalence estimates are essential for developing effective screening and surveillance strategies. Methods: A systematic search was conducted in PubMed, Scopus, Web of Science, and EMBASE from inception to January 2026. Full-text articles and reference lists were also screened manually. Studies reporting BE prevalence in general or clinical populations were included. Extracted data covered study design, population characteristics, diagnostic criteria, biopsy protocols, geographic region, and publication period. Study-level analyses assessed methodological variability and temporal trends. Linear regression and generalized additive models were used to project BE prevalence through 2050. Results: Fifty-two studies, including approximately 8.4 million participants from 24 countries, were analyzed. The pooled mean prevalence of BE was 5.76%, with estimates ranging from 0.06% to 37.4%. Prevalence was higher in symptomatic endoscopy cohorts than in population-based cohorts (4.8% vs. 1.2%, p < 0.001). Studies requiring histologic confirmation of intestinal metaplasia reported lower estimates than those using broader definitions. Significant heterogeneity was observed by region and publication period. Seattle biopsy protocol reporting was documented in 38.5% of studies and improved after 2010. Forecast models projected BE prevalence of 12.8-13.2% by 2050 using linear modeling and 11.2-11.8% using GAM. Conclusion: Reported BE prevalence varies widely, mainly due to differences in diagnostic criteria, study populations, and methodology. Standardized definitions, biopsy protocols, and reporting practices are needed to improve epidemiologic accuracy and guide screening.

Indexed as

Barrett metaplasiaBarrett’s esophagusEpidemiologyPrevalenceWorldwide

Identifiers

PMID42529747
PMCPMC13418502

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Registered trials

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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.