SynthesisJNCI cancer spectrum2021
A Systematic Review and Meta-Analysis of Cancer Patients Affected by a Novel Coronavirus.
Synthesis in JNCI cancer spectrum, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 16 of them syntheses that pooled 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.
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.
Who cites it
90 citing papers in PubMed, 16 syntheses or guidelines pooled it, 123 citations in OpenAlex.
- Prevalence of hematological malignancies in Africa: A systematic review and meta-analysis.Scientific reports · 2025Pooled it
- Risk of COVID-19 death for people with a pre-existing cancer diagnosis prior to COVID-19-vaccination: A systematic review and meta-analysis.International journal of cancer · 2024Pooled it
- The impact of cancer on the severity of disease in patients affected with COVID-19: an umbrella review and meta-meta-analysis of systematic reviews and meta-analyses involving 1,064,476 participants.Clinical and experimental medicine · 2023Pooled it
- Risk phenotypes of diabetes and association with COVID-19 severity and death: an update of a living systematic review and meta-analysis.Diabetologia · 2023Pooled it
- Pooled it
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- Predictors of clinical evolution of SARS-CoV-2 infection in hematological patients: A systematic review and meta-analysis.Hematological oncology · 2023Pooled it
- Methodological Considerations on COVID-19 Mortality in Cancer Patients: A Systematic Review and Meta-Analysis.JNCI cancer spectrum · 2022Pooled it
- Are patients with cancer at higher risk of COVID-19-related death? A systematic review and critical appraisal of the early evidence.Journal of cancer policy · 2022Pooled it
- Associations of MTHFR rs1801133 (677C>T) and rs180113 (1298A>C) Polymorphisms with Susceptibility to Bladder Cancer: A Systematic Review and Meta-Analysis.Asian Pacific journal of cancer prevention : APJCP · 2022Pooled it
- Pooled it
- Pre-existing health conditions and severe COVID-19 outcomes: an umbrella review approach and meta-analysis of global evidence.BMC medicine · 2021Pooled it
- Radiotherapy based management during Covid-19 pandemic - A systematic review of presented consensus and guidelines.Critical reviews in oncology/hematology · 2021Pooled it
- Higher mortality in lung cancer patients with COVID-19? A systematic review and meta-analysis.Lung cancer (Amsterdam, Netherlands) · 2021Pooled it
- Effect of antitumor therapy on cancer patients infected by SARS-CoV-2: A systematic review and meta-analysis.Cancer medicine · 2021Pooled it
- The mechanistic rationale of drugs, primary endpoints, geographical distribution of clinical trials against severe acute respiratory syndrome-related coronavirus-2: A systematic review.Journal of medical virology · 2021Pooled it
- Trial
- Changes in Home-visit Care Utilization and Outcomes During the Coronavirus Disease 2019 Pandemic: Comparison Between Patients With and Without Cancer.Journal of epidemiology · 2026Observational
- Impact of the COVID-19 pandemic on cancer incidence, stage, mortality, and short-term survival in Ireland: a population-based analysis.ESMO real world data and digital oncology · 2026Article
- Neurological Comorbidity Burden, Outcomes, and Disparities in Head and Neck Cancer During COVID-19.Reports (MDPI) · 2026Article
30 more citing papers are in PubMed but not listed here.
Corrections and comments
- Update of
Authors and funding
10 authors at 9 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCancer patients with coronavirus disease 2019 (COVID-19) have been reported to have double the case fatality rate of the general population.
methodsA systematic search of PubMed, Embase, and Cochrane Central was done for studies on cancer patients with COVID-19. Pooled proportions were calculated for categorical variables. Odds ratio (OR) and forest plots (random-effects model) were constructed for both primary and secondary outcomes.
resultsThis systematic review of 38 studies and meta-analysis of 181 323 patients from 26 studies included 23 736 cancer patients. Our meta-analysis shows that cancer patients with COVID-19 have a higher likelihood of death (n = 165 980, OR = 2.54, 95% confidence interval [CI] = 1.47 to 4.42), which was largely driven by mortality among patients in China. Cancer patients were more likely to be intubated. Among cancer subtypes, the mortality was highest in hematological malignancies (n = 878, OR = 2.39, 95% CI = 1.17 to 4.87) followed by lung cancer (n = 646, OR = 1.83, 95% CI = 1.00 to 3.37). There was no association between receipt of a particular type of oncologic therapy and mortality. Our study showed that cancer patients affected by COVID-19 are a decade older than the normal population and have a higher proportion of comorbidities. There was insufficient data to assess the association of COVID-19-directed therapy and survival outcomes in cancer patients.
conclusionCancer patients with COVID-19 disease are at increased risk of mortality and morbidity. A more nuanced understanding of the interaction between cancer-directed therapies and COVID-19-directed therapies is needed. This will require uniform prospective recording of data, possibly in multi-institutional registry databases.
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Registered trials
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.