Evidence map›Paper›PMID 30646480›Full record

ArticleJournal of neurogastroenterology and motility2019

Validation of the Korean Version of the Gastroesophageal Reflux Disease Questionnaire for the Diagnosis of Gastroesophageal Reflux Disease.

Eun Jeong Gong, Kee Wook Jung, Yang-Won Min, Kyoung Sup Hong, Hye-Kyung Jung, Hee Jung Son, Do Yeon Kim, Jungbok Lee, Oh Young Lee

Open access · diamondAbstract read
In one paragraph

Article in Journal of neurogastroenterology and motility, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Observational
  6. Article
  7. Reflux Esophagitis.The Korean journal of helicobacter and upper gastrointestinal research · 2025
    Review
  8. Article
  9. Article
  10. Translation, cultural adaptation, and evaluation of the psychometric properties of the Arabic Gastroesophageal Reflux Disease Questionnaire (Ar-GerdQ).Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association · 2024
    Article
  11. Article
  12. Article
  13. Article
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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

9 authors at 7 institutions in 1 country.

Eun Jeong GongDepartment of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Gangwon-do, Korea.
Kee Wook JungDepartment of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
Yang-Won MinDepartment of Gastroenterology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Kyoung Sup HongDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
Hye-Kyung JungDepartment of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea.
Hee Jung SonDepartment of Gastroenterology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Do Yeon KimDepartment of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
Jungbok LeeDepartment of Clinical Epidemiology and Biostatistics, Asan Medical Center, Seoul, Korea.
Oh Young LeeDepartment of Internal Medicine, Hanyang University School of Medicine, Seoul, Korea.
Samsung Medical Center · KRUlsan College · KRAsan Medical Center · KREwha Womans University · KRHanyang University · KRSeoul National University · KRUniversity of Ulsan · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsThe Gastroesophageal Reflux Disease Questionnaire (GerdQ) has been developed and validated as a tool for the diagnosis of gastroesophageal reflux disease (GERD) in patients with gastrointestinal symptoms. However, the GerdQ and the cutoff value for determining GERD has not been validated in Korea.

methodsPatients with symptoms suggestive of GERD were consecutively recruited. The Korean version of GerdQ was developed through a forward-backward translation process according to the cross-cultural adaptation method. Endoscopically documented esophagitis, abnormal results on 24-hour ambulatory pH recording with symptom association monitoring, or response to proton pump inhibitor treatment were used as diagnostic references for GERD. The reproducibility and test characteristics of the Korean version of GerdQ were assessed.

resultsA total of 149 patients with a median age of 55 years were analyzed. The intra-class correlation coefficient of 2 subsequently measured GerdQ scores was 0.651 (95% CI, 0.518-0.748). The cutoff value of 8 was found to have the highest sensitivity (64.9%; 95% CI, 56.2-73.7) and specificity (71.4%; 95% CI, 56.5-86.4) for the diagnosis of GERD. The questionnaire had a high positive predictive value (88.1%; 95% CI, 81.2-95.0), but a low negative predictive value (38.5%; 95% CI, 26.2-50.3) for GERD. Any symptom improvement on proton pump inhibitor treatment showed a sensitivity of 93.0% (95% CI, 88.3-97.7) and a specificity of 48.6% (95% CI, 32.0-65.1) for GERD.

conclusionThe Korean version of GerdQ is a useful complementary tool in the diagnosis of GERD.

Indexed as

Gastroesophageal refluxSurveys and questionnairesSymptom assessment

Identifiers

PMID30646480
PMCPMC6326199
OpenAlexW2910664149

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.