Evidence map›Paper›PMID 29635717›Full record

Trial reportCancer science2018

Endoscopy screening effect on stage distributions of esophageal cancer: A cluster randomized cohort study in China.

Chen-Tao Guan, Guo-Hui Song, Bian-Yun Li, Yan-Wei Gong, Chang-Qing Hao, Li-Yan Xue, Wan-Qing Chen, Wen-Qiang Wei

Open access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Cancer science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Changes in Geographic Variation and Socioeconomic Inequalities in Esophageal Cancer Mortality in China, 1973-2017.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2023
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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 2 countries.

Chen-Tao GuanDepartment of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Guo-Hui SongDepartment of Epidemiology, Cancer Institute/Hospital of Cixian, Cixian, China.
Bian-Yun LiDepartment of Epidemiology, Cancer Institute/Hospital of Linzhou, Linzhou, China.
Yan-Wei GongDepartment of Epidemiology, Cancer Institute/Hospital of Cixian, Cixian, China.
Chang-Qing HaoDepartment of Endoscopy, Cancer Institute/Hospital of Linzhou, Linzhou, China.
Li-Yan XueDepartment of Pathology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Wan-Qing ChenNational Office for Cancer Prevention and Control, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Wen-Qiang WeiDepartment of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.ORCID http://orcid.org/0000-0003-2078-9056
Chinese Academy of Medical Sciences & Peking Union Medical College · CNCixian People's Hospital · CNLinzhou Cancer Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Efficacy of endoscopic screening for esophageal cancer is not sufficiently definitive and lacks randomized controlled trial evidence. The present study proved short-term screening efficacy through describing and comparing disease stage distributions of intervention and control populations. Villages from Linzhou and Cixian were cluster randomly allocated to the intervention or to the control group and the target population of 52 729 and 43 068 individuals was 40-69 years old, respectively, and the actual enrolled numbers were 18 316 and 21 178, respectively. TNM stage information and study-defined stage information of esophageal cases from 2012 to 2016 were collected. Stage distributions were compared between the intervention and control groups in the total target population, as well as in the subgroup populations in terms of enrolment and before or after intervention. There were a total of 199 and 141 esophageal cancer cases in the intervention and control groups, respectively. For the target population, distributions of TNM stage were borderline significant between the two groups after intervention (P = .093). However, subgroup analysis of the enrolled population during the after-intervention period had statistical significance for both TNM and study-defined stage. Natural TNM stage distributions were approximately 32%, 41%, 24% and 3% for stages I to IV vs 71%, 19%, 7% and 3% in the intervention population. The natural study-defined stage distributions from early, middle to advanced stages were approximately 18%, 49% and 33% vs 59%, 33% and 8%. Early-stage esophageal cancer cases accounted for a higher proportion after endoscopy screening, and the efficacy in the target population depends on the intervention compliance.

Indexed as

AdultAgedAsian PeopleChinaCohort StudiesEarly Detection of CancerEndoscopyEsophageal NeoplasmsFemaleHumansMaleMiddle AgedNeoplasm StagingSurveys and Questionnairesearly detection of cancerendoscopyesophageal neoplasmneoplasm stagingrandom allocation

Identifiers

PMID29635717
PMCPMC5989864
OpenAlexW2797227107

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.