Evidence map›Paper›PMID 12865263›Full record

ArticleGut2003

Genetic influences in gastro-oesophageal reflux disease: a twin study.

I Mohammed, L F Cherkas, S A Riley, T D Spector, N J Trudgill

Open access · bronzeAbstract readTwin Study
In one paragraph

Article in Gut, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 8 pooled it
7.0field-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

90 citing papers in PubMed, 8 syntheses or guidelines pooled it, 274 citations in OpenAlex.

  1. Pooled it
  2. Prevalence and risk factors for gastroesophageal reflux disease in the Indian population: A meta-analysis and meta-regression study.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2021
    Pooled it
  3. Development of scores assessing the refluxogenic potential of diet of patients with laryngopharyngeal reflux.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2019
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Trial
  10. Trial
  11. Immune functions of the esophagus.The Journal of allergy and clinical immunology · 2026
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. The Prevalence of Gastroesophageal Reflux Disease in Azerbaijan: A Population-Based Cross-sectional Study.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2023
    Article
  19. Article
  20. Article

30 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

5 authors at 3 institutions in 1 country.

I MohammedDepartment of Gastroenterology, Sandwell General Hospital, West Bromich, UK.
L F Cherkas
S A Riley
T D Spector
N J Trudgill
Sandwell General Hospital · GBSt Thomas' Hospital · GBNorthern General Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundA number of families have been described which include multiple members with symptomatic, endoscopic, or complicated gastro-oesophageal reflux disease (GORD). First degree relatives of patients with GORD are more likely to suffer with GORD symptoms. These observations raise the possibility of a genetic contribution to the aetiology of GORD.

aimsTo determine the relative contribution of genetic factors to GORD by evaluating GORD symptoms in monozygotic (MZ) and dizygotic (DZ) twins.

methodsA total of 4480 unselected twin pairs, identified from a national volunteer twin register, were asked to complete a validated symptom questionnaire. GORD was defined as symptoms of heartburn or acid regurgitation at least weekly during the past year.

resultsReplies were obtained from 5032 subjects (56% response rate). A total of 1960 twin pairs were evaluable: 928 MZ pairs (86 male pairs, mean (SD) age 52 (13) (range 19-81) years) and 1032 DZ pairs (71 male pairs, mean age 52 (13) (20-82) years). The prevalence of GORD among both groups of twins was 18%. Casewise concordance rates were significantly higher for MZ than DZ twins (42% v 26%; p<0.001). Multifactorial liability threshold modelling suggests that additive genetic effects combined with unique environmental factors provide the best model for GORD. Heritability estimates suggest that 43% (95% confidence interval 32-55%) of the variance in liability to GORD is due to additive genetic factors.

conclusionsThere is a substantial genetic contribution to the aetiology of GORD.

Indexed as

AdultAgedAged, 80 and overFemaleGastroesophageal RefluxHumansLogistic ModelsMaleMiddle AgedPhenotypeRegression Analysis

Identifiers

PMID12865263
PMCPMC1773757
OpenAlexW2098421811

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.