Evidence map›Paper›PMID 32922537›Full record

ArticleJournal of Cancer2020

Colonoscopic screening is associated with reduced Colorectal Cancer incidence and mortality: a systematic review and meta-analysis.

Jiaxin Zhang, Guang Chen, Zhiguo Li, Peng Zhang, Xiaoke Li, Da'nan Gan, Xu Cao, Hongbo Du, Jiaying Zhang, Ludan Zhang and 1 more

Abstract read
In one paragraph

Article in Journal of Cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

46 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  14. Optimizing detection and resection of colorectal polyps.Translational gastroenterology and hepatology · 2026
    Review
  15. Article
  16. Review
  17. Article
  18. Screening for and surveillance of premalignant conditions of the stomach.Best practice & research. Clinical gastroenterology · 2025
    Review
  19. Article
  20. 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

11 authors.

Jiaxin ZhangDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Guang ChenDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Zhiguo LiDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Peng ZhangDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Xiaoke LiDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Da'nan GanDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Xu CaoDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Hongbo DuDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Jiaying ZhangMinistry of Education Key Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.
Ludan ZhangDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Yong'an YeDongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is the great priority to detect colorectal cancer (CRC) as early as possible, finally to reduce the incidence and mortality of CRC. However, although colonoscopy is recommended in many consensuses, yet no one systematic review is conducted to figure out how colonoscopy could change the incidence and mortality. In our study, we conducted a comprehensive meta-analysis to evaluate the association between colonoscopy screening and the incidence or mortality of CRC. PubMed, EMBASE, and PMC database were systematically searched from their inception to June 2020. A total of 13 cohort and 16 case-control studies comprising 4,713,778 individuals were obtained in this review. Our results showed that colonoscopy was associated with a 52%

Indexed as

colonoscopycolorectal cancerincidence and mortalitymeta-analysis

Identifiers

PMID32922537
PMCPMC7477408

What OpenQuestion holds

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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.