Evidence map›Paper›PMID 41166671›Full record

ArticleJCO clinical cancer informatics2025

Measuring the Association Between the COVID-19 Pandemic and Cancer Incidence by Sex Using a Quasi-Experimental Study Design.

Kathleen M Decker, Allison Feely, Iresha Ratnayake, Oliver Bucher, Piotr Czaykowski, Katie Galloway, Pamela Hebbard, Julian O Kim, Grace Musto, Marshall Pitz and 2 more

Abstract read
In one paragraph

Article in JCO clinical cancer informatics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

12 authors.

Kathleen M DeckerPaul Albrechtsen Research Institute, CancerCare Manitoba, Winnipeg, MB, Canada.ORCID 0000-0002-0044-7545
Allison FeelyDepartment of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada.
Iresha RatnayakeDepartment of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada.
Oliver BucherDepartment of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada.
Piotr CzaykowskiDepartment of Community Health Sciences, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada.
Katie GallowayDepartment of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada.ORCID 0000-0002-3732-336X
Pamela HebbardDepartment of Surgery, Section of General Surgery, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada.
Julian O KimPaul Albrechtsen Research Institute, CancerCare Manitoba, Winnipeg, MB, Canada.ORCID 0000-0003-0332-2024
Grace MustoDepartment of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada.
Marshall PitzPaul Albrechtsen Research Institute, CancerCare Manitoba, Winnipeg, MB, Canada.ORCID 0000-0002-1858-5081
Harminder SinghPaul Albrechtsen Research Institute, CancerCare Manitoba, Winnipeg, MB, Canada.ORCID 0000-0002-9354-2356
Pascal LambertPaul Albrechtsen Research Institute, CancerCare Manitoba, Winnipeg, MB, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study examined the association between COVID-19 and cancer incidence by sex in Manitoba, Canada.

methodsWe used a population-based quasi-experimental study design and an interrupted time-series analysis to compare the rate of new cancer diagnoses between males and females before (January 2015 until December 2019) and after the start of the COVID-19 pandemic (April 2020 until December 2022).

resultsA total of 16,200 females and 20,631 males diagnosed with cancer between 2015 and 2022 in Manitoba were included. Colon cancer incidence decreased by 34% for males and females from April to September 2020. Incidence then remained stable for males but decreased by 22% from October 2021 to December 2022 for females. Brain and CNS cancer incidence decreased by 37% for males during 2021 and 2022 but only for females during the last quarter of 2020 and the first quarter of 2021 (77%). Urinary cancer decreased by 18% for males from April 2020 to December 2022 but was stable for females. Head and neck cancers decreased by 22% for males during 2020, but was stable for females. As of December 2022, the largest estimated cumulative differences in the number of cases occurred for males diagnosed with brain and CNS cancer (31.6% deficit for males, 76 cases), urinary cancer (18.4% deficit, 186 cases), and endocrine cancer (52.4% surplus, 56 cases), and females diagnosed with colon cancer (19.7% deficit, 187 cases).

conclusionSex-based differences in the association between age-standardized cancer incidence and the COVID-19 pandemic exist for several cancer sites. Sex-based differences on postpandemic cancer incidence, especially for brain, CNS, urinary, and colon cancers, need follow-up because of the ongoing deficits documented in this study.

Indexed as

COVID-19NeoplasmsAdultAgedFemaleHumansIncidenceMaleManitobaMiddle AgedPandemicsSARS-CoV-2Sex Factors

Identifiers

PMID41166671
PMCPMC12591556

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.