Evidence map›Paper›PMID 26239636›Full record

ArticleBMC gastroenterology2015

Interobserver and intraobserver agreement for gastric mucosa atrophy.

Tomohiro Miwata, Duc Trong Quach, Toru Hiyama, Rika Aoki, Huy Minh Le, Phuong Luu Ngoc Tran, Masanori Ito, Shinji Tanaka, Koji Arihiro, Naomi Uemura and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

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  19. Diagnostic Accuracy ofFrontiers in medicine · 2021
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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

11 authors at 6 institutions in 2 countries.

Tomohiro MiwataDepartment of Gastroenterology and Metabolism, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan. tmiwata@hiroshima-u.ac.jp.
Duc Trong QuachDepartment of Endoscopy, University Medical Center, Ho Chi Minh, Vietnam. quachtrongduc2002@yahoo.com.
Toru HiyamaHealth Service Center, Hiroshima University, Higashihiroshima, Japan. tohiyama@hiroshima-u.ac.jp.
Rika AokiDepartment of Internal Medicine, Tokushima Health Screening Center, Tokushima, Japan. rikaoki@syd.odn.ne.jp.
Huy Minh LeDepartment of Endoscopy, University Medical Center, Ho Chi Minh, Vietnam. huy2903@yahoo.com.
Phuong Luu Ngoc TranDepartment of Endoscopy, University Medical Center, Ho Chi Minh, Vietnam. phuongbanggia@yahoo.com.
Masanori ItoDepartment of Gastroenterology and Metabolism, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan. maito@hiroshima-u.ac.jp.
Shinji TanakaDepartment of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan. colon@hiroshima-u.ac.jp.
Koji ArihiroDepartment of Pathology, Hiroshima University Hospital, Hiroshima, Japan. arihiro@hiroshima-u.ac.jp.
Naomi UemuraDepartment of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Ichikawa, Japan. nuemura@hospk.ncgm.go.jp.
Kazuaki ChayamaDepartment of Gastroenterology and Metabolism, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan. chayama@hiroshima-u.ac.jp.
Hiroshima University · JPUniversity Medical Center HCMC · VNHiroshima University Hospital · JPHigashihiroshima Medical Center · JPNational Center for Global Health and Medicine · JPTokushima Breast Care Clinic · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe grade of gastric mucosa atrophy caused by Helicobacter pylori (H. pylori) infection is closely associated with the risk of gastric cancer, especially of the intestinal type. Interobserver and intraobserver agreement for endoscopic gastric mucosa atrophy in subjects with H. pylori-uninfected, currently infected and past infected was investigated.

methodsEndoscopic images of 91 patients, 34 images per patient, were assessed. The assessors were 4 endoscopist groups: Japanese and Vietnamese experienced (≥7, ≤ 15 year experience with endoscopy) and Japanese and Vietnamese beginner (≤ 3 year experience) groups. Each group comprised 3 endoscopists. The grades of atrophy were classified as 3: none to mild (C-0 and C-1), moderate (C-2 and C-3), and severe (O-1, O-2, and O-3) using the Kimura-Takemoto Classification. After a period of 2 weeks, images of all patients were reevaluated by the investigators. Interobserver and intraobserver agreement was calculated by kappa statistics.

resultsThe kappa values for the interobserver agreement in the groups of Japanese and Vietnamese experienced, and Japanese and Vietnamese beginner were 0.474, 0.408, 0.291, and 0.373, respectively. The kappa value of intraobsever agreement in the Japanese and Vietnamese experienced endoscoists ranged from 0.585 to 0.871. On the other hand, the value in the beginner endoscopists ranged wider than that in experienced endoscopists, from 0.264 to 0.866.

conclusionsOur results indicated that, although intraobserver agreement for gastric mucosa atrophy was good to excellent, interobserver agreement was moderate in experienced endoscopists. This suggests that better guidelines and firm criteria may be needed to properly diagnose and grade gastric atrophy.

Indexed as

Helicobacter pyloriAgedAtrophyClinical CompetenceFemaleGastric MucosaGastroscopyHelicobacter InfectionsHumansJapanMaleMiddle AgedObserver VariationSeverity of Illness IndexVietnam

Identifiers

PMID26239636
PMCPMC4523036
OpenAlexW1951992266

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.