Evidence map›Paper›PMID 31939000›Full record

ArticleEsophagus : official journal of the Japan Esophageal Society2020

Esophagectomy performed at institutes certified by the Japan Esophageal Society provide long-term survival advantages to esophageal cancer patients: second report analyzing 4897 cases with propensity score matching.

Satoru Motoyama, Eri Maeda, Masahiko Yano, Takushi Yasuda, Masaichi Ohira, Yoshiaki Kajiyama, Takahiro Higashi, Yuichiro Doki, Hisahiro Matsubara

Open access · hybridAbstract read
In one paragraph

Article in Esophagus : official journal of the Japan Esophageal Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 12 citations in OpenAlex.

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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 1 institution in 1 country.

Satoru MotoyamaThe Japan Esophageal Society, Tokyo, Japan. motoyama@doc.med.akita-u.ac.jp.ORCID 0000-0001-9191-2563
Eri MaedaDepartment of Environmental Health Science and Public Health, Akita University Graduate School of Medicine, Akita, Japan.
Masahiko YanoThe Japan Esophageal Society, Tokyo, Japan.
Takushi YasudaThe Japan Esophageal Society, Tokyo, Japan.
Masaichi OhiraThe Japan Esophageal Society, Tokyo, Japan.
Yoshiaki KajiyamaThe Japan Esophageal Society, Tokyo, Japan.
Takahiro HigashiDivision of Health Services Research, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan.
Yuichiro DokiThe Japan Esophageal Society, Tokyo, Japan.
Hisahiro MatsubaraThe Japan Esophageal Society, Tokyo, Japan.
Akita University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt will be important for the Japan Esophageal Society (JES) to show an evident advantage of its institution certification system. To achieve this essential task, we used nationally acquired big data to re-analyze 5-year survival information.

methodsIn 2008-2009, there were 4897 thoracic esophageal cancer patients who underwent esophagectomy and were registered in the National Database of Hospital-based Cancer Registries. We divided these patients into two groups, those who underwent surgery at an Authorized Institute for Board Certified Esophageal Surgeons (AIBCES) or a Non-AIBCES. We then compared the patient backgrounds and 5-year survival rates between these two groups, with and without propensity score matching.

resultsThere were 3080 (63%) patients who underwent esophagectomy at an AIBCES and 1817 (37%) who underwent surgery at a Non-AIBCES. Comparison of the Kaplan-Meier survival curves using log-rank tests indicated a significant difference between the AIBCES and Non-AIBCES groups at all cStages (cStages I-IV). Multivariable Cox proportional hazard analysis stratified by clinical stage and adjuvant treatment revealed that AIBCES vs. Non-AIBCES is a significant independent factor (adjusted HR 0.78) for survival. After propensity score matching ensuring the backgrounds of the two groups being equivalent, there were significant differences in the 5-year survival rates for patients with cStages I-III disease between the AIBCES and Non-AIBCES groups.

conclusionsThere is a survival advantage to undergoing esophagectomy at an AIBCES. The institute certification system from the JES will contribute to the future establishment of a more appropriate surgery delivery system for thoracic esophageal cancer.

Indexed as

AgedCase-Control StudiesCertificationData ManagementEsophageal NeoplasmsEsophagectomyFemaleHumansJapanKaplan-Meier EstimateMaleMiddle AgedNeoplasm StagingPropensity ScoreRegistriesSocieties, MedicalCertificationEsophageal cancerEsophagectomyInstitutePropensity score matchingSurvival

Identifiers

PMID31939000
PMCPMC7066103
OpenAlexW2998837480

What OpenQuestion holds

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LicenceCC BY
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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.