Evidence map›Paper›PMID 33940350›Full record

ArticleEuropean journal of cancer (Oxford, England : 1990)2021

New cancer cases at the time of SARS-Cov2 pandemic and related public health policies: A persistent and concerning decrease long after the end of the national lockdown.

Emmanuelle Kempf, Guillaume Lamé, Richard Layese, Sonia Priou, Gilles Chatellier, Hedi Chaieb, Marc-Antoine Benderra, Ali Bellamine, Romain Bey, Stéphane Bréant and 9 more

Abstract read
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In one paragraph

Article in European journal of cancer (Oxford, England : 1990), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  4. COVID-19 mortality risk among women with ovarian cancer: a matched case-control study.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
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  19. Have telephone reminders been a good way to reduce non-attendance rates for endoscopy during the COVID-19 pandemic?Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2022
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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

19 authors.

Emmanuelle KempfAssistance Publique - Hôpitaux de Paris, Department of Medical Oncology, Henri Mondor and Albert Chenevier Teaching Hospital, Créteil, France. Electronic address: emmanuelle.kempf@aphp.fr.
Guillaume LaméUniversité Paris-Saclay, CentraleSupélec, Laboratoire Génie Industriel, Gif-sur-Yvette, France.
Richard LayeseUniversité Paris Est Créteil, INSERM, IMRB, CEpiA Team, Assistance Publique - Hôpitaux de Paris, Clinical Research Unit, Henri Mondor and Albert Chenevier Teaching Hospital, Créteil, France.
Sonia PriouAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Gilles ChatellierUniversité de Paris, Department of Medical Informatics, Assistance Publique Hôpitaux de Paris.Centre-Université de Paris (APHP-CUP), Paris, F-75015, France.
Hedi ChaiebAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Marc-Antoine BenderraAssistance Publique - Hôpitaux de Paris, Department of Medical Oncology, Tenon Teaching Hospital, Paris, France.
Ali BellamineAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Romain BeyAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Stéphane BréantAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Gilles GalulaAssistance Publique - Hôpitaux de Paris, Head Office, Department of Chronic Diseases and Cancer, Paris, France.
Namik TarightAssistance Publique - Hôpitaux de Paris, Head Office, Department of Medical Information, Paris, France.
Xavier TannierSorbonne Université, Laboratoire D'informatique Médicale et D'ingénierie des Connaissances en e-Santé, Paris, France.
Thomas GuyetAgrocampus-Ouest / IRISA - Inria, Rennes, France.
Elisa SalamancaAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Etienne AudureauUniversité Paris Est Créteil, INSERM, IMRB, CEpiA Team, Assistance Publique - Hôpitaux de Paris, Clinical Research Unit, Henri Mondor and Albert Chenevier Teaching Hospital, Créteil, France.
Christel DanielAssistance Publique - Hôpitaux de Paris, IT System Department, Paris, France.
Christophe TournigandUniversité Paris Est Créteil, INSERM, IMRB, Assistance Publique - Hôpitaux de Paris, Department of Medical Oncology, Henri Mondor and Albert Chenevier Teaching Hospital, Créteil, France.
Assistance Publique – Hôpitaux de Paris Cancer Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe dissemination of SARS-Cov2 may have delayed the diagnosis of new cancers. This study aimed at assessing the number of new cancers during and after the lockdown.

methodsWe prospectively collected the clinical data of the 11.4 million patients referred to the Assistance Publique Hôpitaux de Paris Teaching Hospital. We identified new cancer cases between 1st January 2018 and 31st September 2020 and compared indicators for 2018 and 2019 to 2020 with a focus on the French lockdown (17th March to 11th May 2020) across cancer types and patient age classes.

resultsBetween January and September, 28,348, 27,272 and 23,734 new cancer cases were identified in 2018, 2019 and 2020, respectively. The monthly median number of new cases reached 3168 (interquartile range, IQR, 3027; 3282), 3054 (IQR 2945; 3127) and 2723 (IQR 2085; 2,863) in 2018, 2019 and 2020, respectively. From March 1st to May 31st, new cancer decreased by 30% in 2020 compared to the 2018-19 average; then by 9% from 1st June to 31st September. This evolution was consistent across all tumour types: -30% and -9% for colon, -27% and -6% for lung, -29% and -14% for breast, -33% and -12% for prostate cancers, respectively. For patients aged <70 years, the decrease of colorectal and breast new cancers in April between 2018 and 2019 average and 2020 reached 41% and 39%, respectively.

conclusionThe SARS-Cov2 pandemic led to a substantial decrease in new cancer cases. Delays in cancer diagnoses may affect clinical outcomes in the coming years.

Indexed as

COVID-19AgedFemaleFranceHealth PolicyHumansMaleMiddle AgedNeoplasmsQuarantineSARS-CoV-2COVID-19Early detection of cancerHealth policyIncidence

Identifiers

PMID33940350
PMCPMC7904473

What OpenQuestion holds

Textmetadata
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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.