Evidence map›Paper›PMID 33576870›Full record

ArticleJournal of gastroenterology2021

Excessive risk of second-cancer incidence and cancer mortality in patients with esophageal cancer.

Masayasu Ohmori, Ryu Ishihara, Toshitaka Morishima, Takahiro Tabuchi, Hiroyuki Okada, Yuko Ohno, Tomotaka Sobue, Isao Miyashiro

Abstract read
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In one paragraph

Article in Journal of gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Image-enhanced endoscopy in upper GI tract: State-of-the-art review.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025
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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

8 authors at 3 institutions in 1 country.

Masayasu OhmoriDepartment of Gastroenterology and Hepatology, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Ryu IshiharaDepartment of Gastrointestinal Oncology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan. ryu1486@gmail.com.
Toshitaka MorishimaCancer Control Center, Osaka International Cancer Institute, Osaka, Japan.
Takahiro TabuchiCancer Control Center, Osaka International Cancer Institute, Osaka, Japan.
Hiroyuki OkadaDepartment of Gastroenterology and Hepatology, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Yuko OhnoDepartment of Mathematical Health Science, Graduate School of Medicine, Osaka University, Suita, Japan.
Tomotaka SobueDivision of Environmental Medicine and Population Sciences, Department of Social Medicine, Graduate School of Medicine, Osaka University, Suita, Japan.
Isao MiyashiroCancer Control Center, Osaka International Cancer Institute, Osaka, Japan.
Osaka Medical Center for Cancer and Cardiovascular Diseases · JPOsaka University · JPOkayama University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSecond primary cancers have impact on survival in patients who achieved cure for the first esophageal cancer. We, therefore, assessed the risk of incidence and mortality for second primary cancer by calculating standardized incidence ratio (SIR) and standardized mortality ratio (SMR) in patients with superficial or localized esophageal cancer without lymph node metastases as the first cancer (index cancer).

methodsData on cancer development and subsequent causes of deaths were collected from integrated database of the Osaka Cancer Registry and the Vital Statistics of Japan. Records with information on patients with index esophageal cancer diagnosed between 2004 and 2013 were extracted from the database. Then, SIR and SMR for second primary cancers that developed in other organ were calculated with the reference to the general population during the same period. All probability values are two-tailed.

resultsOf 473,784 case records, 3022 cases of patients with index esophageal cancer were identified. Significantly higher SMRs/SIRs for cancers in mouth/pharynx, larynx, pancreas, and leukemia were confirmed with the values of 10.78/16.16, 8.56/6.44, 2.33/2.31, and 3.96/4.42, respectively. Significantly, higher SIRs for stomach, lung, and skin cancers were confirmed with the values of 2.84, 2.36, and 3.38, respectively, while SMRs were not significantly higher in these cancers.

conclusionsSignificantly higher risks for mouth/pharynx, larynx, pancreas, and leukemia as second cancers were clarified. Careful surveillance for these cancers is required for esophageal cancer patients.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolEsophageal NeoplasmsFemaleHumansIncidenceInfantJapanMaleMiddle AgedNeoplasms, Second PrimaryRegistriesCancer registryEsophageal cancerSecond primary cancerSurveillanceVital Statistics

Identifiers

PMID33576870
OpenAlexW3128523015

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.