Evidence map›Paper›PMID 21695373›Full record

SynthesisJournal of gastroenterology2011

Systematic review of the epidemiology of gastroesophageal reflux disease in Japan.

Yoshikazu Kinoshita, Kyoichi Adachi, Michio Hongo, Ken Haruma

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Journal of gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
4.4field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. The role of vonoprazan in patients with erosive esophagitis.Therapeutic advances in gastroenterology · 2022
    Review
  7. Article
  8. Article
  9. Article
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  11. Influence of sex on the association between body mass index and frequency of upper gastrointestinal symptoms.JGH open : an open access journal of gastroenterology and hepatology · 2020
    Article
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  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Influence of metabolic syndrome on upper gastrointestinal disease.Clinical journal of gastroenterology · 2016
    Review
  20. 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

4 authors at 3 institutions in 1 country.

Yoshikazu KinoshitaShimane University Faculty of Medicine, 89-1 Enya-cho, Izumo, Shimane 693-8501, Japan. kinosita@med.shimane-u.ac.jp
Kyoichi Adachi
Michio Hongo
Ken Haruma
Shimane University · JPKawasaki Medical School · JPTohoku University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEpidemiological studies of gastroesophageal reflux disease (GERD) in Japan vary in design. This systematic review examines the prevalence of GERD in Japan, distinguishing between study methodologies, and reports on changes over time and factors potentially associated with GERD.

methodsPubMed and Embase searches identified studies reporting the prevalence of GERD in the general population, primary care patients, and individuals undergoing routine health checks.

resultsOf the twenty eligible studies, half excluded individuals taking acid-suppressive medication, so these studies would have been likely to have underestimated the prevalence by 2-3%. Nine studies reported the prevalence of at least weekly reflux symptoms (the definition closest to the Montreal definition): in seven studies this was 6.5-9.5%, but in two studies that included individuals who underwent upper gastrointestinal endoscopy the prevalence was 19.0 and 21.8%. Eight studies used symptom scores: prevalence estimates ranged from 10.2 to 29.0% in five studies using the Carlsson-Dent self-administered questionnaire (QUEST), and from 27.0 to 37.6% in three studies using the frequency scale for the symptoms of GERD. Prevalence estimates were 15.1-24.3% in three studies that reported the presence of reflux symptoms of undefined frequency. Six studies reported the prevalence of reflux esophagitis as 4.9-8.2%. Changes in prevalence over time and factors associated with reflux symptoms were inconsistent.

conclusionsFew studies have reported the prevalence of GERD in Japan using standardized criteria. Thus, prevalence estimates vary substantially, reflecting differences in study populations and GERD definitions. However, seven studies reported that the prevalence of at least weekly symptoms was 6.5-9.5%, a finding which approaches that reported in Western populations (10-20%).

Indexed as

Epidemiologic Research DesignEndoscopy, GastrointestinalEpidemiologic MethodsEsophagitis, PepticGastroesophageal RefluxHumansJapanPrevalenceTime Factors

Identifiers

PMID21695373
OpenAlexW2083386937

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.