Evidence map›Paper›PMID 32898707›Full record

SynthesisClinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association2021

Impact of SARS-CoV-2 Pandemic on Colorectal Cancer Screening Delay: Effect on Stage Shift and Increased Mortality.

Luigi Ricciardiello, Clarissa Ferrari, Michela Cameletti, Federica Gaianill, Francesco Buttitta, Franco Bazzoli, Gian Luigi de'Angelis, Alberto Malesci, Luigi Laghi

Abstract readMeta-Analysis
In one paragraph

Synthesis in Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 2 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

83 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Risk Stratification to Optimize Colorectal Cancer Screening: Development and Validation of a Decision-Tree Model for Colonoscopy Prioritization.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026
    Article
  4. Article
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  10. Disparities in Cancer Stage Shifts Associated with the COVID-19 Pandemic in California, 2020 to 2021.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025
    Article
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  16. Review
  17. Observational
  18. Article
  19. Restricted access and advanced disease in post-pandemic testicular cancer.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2024
    Article
  20. Review

23 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Luigi RicciardielloDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy. Electronic address: luigi.ricciardiello@unibo.it.
Clarissa FerrariUnit of Statistics, IRCCS Istituto Centro San Giovanni di Dio, Fatebenefratelli, Brescia, Italy.
Michela CamelettiDepartment of Management, Economics and Quantitative Methods, University of Bergamo, Bergamo, Italy.
Federica GaianillGastroenterology and Endoscopy Unit, University Hospital of Parma, Parma, Italy.
Francesco ButtittaDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy.
Franco BazzoliDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy.
Gian Luigi de'AngelisDepartment of Medicine and Surgery, University of Parma, Parma, Italy; Gastroenterology and Endoscopy Unit, University Hospital of Parma, Parma, Italy.
Alberto MalesciDepartment of Gastroenterology, Humanitas Research Institute and Humanitas University, Rozzano, Italy.
Luigi LaghiDepartment of Medicine and Surgery, University of Parma, Parma, Italy; Laboratory of Molecular Gastroenterology, Humanitas Clinical and Research Centre, Rozzano, Italy. Electronic address: luigiandreagiuseppe.laghi@unipr.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsThe SARS-CoV-2 pandemic had a sudden, dramatic impact on healthcare. In Italy, since the beginning of the pandemic, colorectal cancer (CRC) screening programs have been forcefully suspended. We aimed to evaluate whether screening procedure delays can affect the outcomes of CRC screening.

methodsWe built a procedural model considering delays in the time to colonoscopy and estimating the effect on mortality due to up-stage migration of patients. The number of expected CRC cases was computed by using the data of the Italian screened population. Estimates of the effects of delay to colonoscopy on CRC stage, and of stage on mortality were assessed by a meta-analytic approach.

resultsWith a delay of 0-3 months, 74% of CRC is expected to be stage I-II, while with a delay of 4-6 months there would be a 2%-increase for stage I-II and a concomitant decrease for stage III-IV (P = .068). Compared to baseline (0-3 months), moderate (7-12 months) and long (> 12 months) delays would lead to a significant increase in advanced CRC (from 26% to 29% and 33%, respectively; P = .008 and P < .001, respectively). We estimated a significant increase in the total number of deaths (+12.0%) when moving from a 0-3-months to a >12-month delay (P = .005), and a significant change in mortality distribution by stage when comparing the baseline with the >12-months (P < .001).

conclusionsScreening delays beyond 4-6 months would significantly increase advanced CRC cases, and also mortality if lasting beyond 12 months. Our data highlight the need to reorganize efforts against high-impact diseases such as CRC, considering possible future waves of SARS-CoV-2 or other pandemics.

Indexed as

Colorectal NeoplasmsCOVID-19Delayed DiagnosisEarly Detection of CancerAgedColonoscopyHumansItalyMass ScreeningMiddle AgedNeoplasm StagingPandemicsColon CancerColonoscopyColorectal Cancer ScreeningFecal Immunochemical TestSARS-CoV-2

Identifiers

PMID32898707
PMCPMC7474804

What Socratic 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 Socratic graph.