Evidence map›Paper›PMID 42164456›Full record

ArticleGastroenterology report2026

Current status and challenges of colorectal cancer screening program in Guangzhou, China: a population-based study.

Dan Zhao, Boheng Liang, Yingru Liang, Suixiang Wang, Huan Xu, Jun Yuan

Abstract read
In one paragraph

Article in Gastroenterology report, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Dan ZhaoSchool of Public Health, Southern Medical University, No. 1023-1063, Shatai South Road, Baiyun District, Guangzhou, Guangdong, P. R. China.ORCID https://orcid.org/0009-0003-2392-4556
Boheng LiangGuangzhou Center for Disease Control and Prevention, No.1 Qide Road, Jiahe, Baiyun District, Guangzhou, Guangdong, P. R. China.
Yingru LiangGuangzhou Center for Disease Control and Prevention, No.1 Qide Road, Jiahe, Baiyun District, Guangzhou, Guangdong, P. R. China.
Suixiang WangGuangzhou Center for Disease Control and Prevention, No.1 Qide Road, Jiahe, Baiyun District, Guangzhou, Guangdong, P. R. China.
Huan XuGuangzhou Center for Disease Control and Prevention, No.1 Qide Road, Jiahe, Baiyun District, Guangzhou, Guangdong, P. R. China.
Jun YuanSchool of Public Health, Southern Medical University, No. 1023-1063, Shatai South Road, Baiyun District, Guangzhou, Guangdong, P. R. China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Colorectal cancer (CRC) remains a major public health burden. In 2015, a large-scale population-based CRC screening program was launched in Guangzhou for residents aged 45-74 years. This study assessed the program's performance during 2015-2023 to inform future strategies. Methods: A cross-sectional analysis was conducted by using data from 575,843 first-time participants. High-risk individuals were identified through a risk assessment questionnaire combined with fecal immunochemical test (FIT), with positives referred for colonoscopy. Statistical analyses were weighted according to the 2020 Guangzhou census population. Passive follow-up was performed via the Guangzhou Cancer Registration System, enabling estimation of true positives and false negatives. Group differences were examined by using the Results: Of 575,843 participants, 83,590 (14.52%; weighted, 14.55%) were assessed as high-risk. Among them, 22,157 (26.51%; weighted, 28.17%) completed colonoscopy. Overall, 915 CRC cases were detected. Higher colonoscopy adherence was associated with higher education, family history of CRC, anorectal symptoms, and financial allowance. Lesions were found to be more common in older individuals, men, and those with positive FIT. More low-risk lesions and fewer early- and mid/late-stage CRCs were found during the second round of screening (2021-2023) than during the first round of screening (2015-2017). Passive follow-up identified 233 CRCs within 1 year among initially screening-negative participants. Conclusions: This study demonstrated the feasibility of a two-step CRC screening strategy in Guangzhou and its effectiveness in detecting early lesions. However, poor adherence to follow-up colonoscopy remains a key limitation. Targeted interventions-including health education, system-level support, and appropriate financial incentives-are essential to improve compliance and overall program effectiveness.

Indexed as

cancer screeningcolorectal cancercross-sectional study

Identifiers

PMID42164456
PMCPMC13183681

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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.