ArticleCancer causes & control : CCC2026
Monitoring cancer survival in Belgium: early insights 3 years after the COVID-19 pandemic.
Article in Cancer causes & control : CCC, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Impact of the COVID-19 pandemic and its measures on one-year and three-year cancer survival using Swiss cantonal cancer registry data.Cancer causes & control : CCC · 2026Article
- SARS-CoV-2 and reproductive system: a scientometric study.Frontiers in reproductive health · 2026Article
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Authors and funding
4 authors.
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Abstract
purposeIn 2020, health care systems worldwide were challenged by the COVID-19 pandemic, disrupting the medical care trajectory of cancer patients. The observed diagnostic delays requested further monitoring including an assessment of survival probabilities.
methodsThe 1-, 2- and 3-years relative survival (RS; Ederer II; follow-up until 1st May 2025) was calculated for invasive tumours diagnosed between 2017 and 2021 in Belgium (overall and per cancer type) and compared with asymptotic two-sided Z-tests on the log-transformed scale.
resultsFollowing a decrease of the 1- and 2-years RS for 2020 (82.0% and 75.5%) compared to 2019 (82.5% and 76.1%), the 3-years RS for 2020 (72.0%) aligned again with the 3-years RS for 2019 (72.2%). The 2021 (1-, 2- and 3-years) RS and 2022 (1- and 2-years) RS estimates are in line with the increasing pre-pandemic survival rates for all cancers. The RS results showed a wide heterogeneity across cancer types. In addition, we observed small shifts in the characteristics of the cancer patient populations with contrasting impact on survival.
conclusionSince the start of the COVID-19 pandemic, the importance of timeliness in the monitoring of cancer incidence and survival emerged for many cancer registries worldwide. Based on our RS results, we advocate for tailored survival analyses per subpopulation (age group, cancer type, stage, etc.) to reveal mid- and long-term survival effects of the pandemic.
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