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Were cancer patients worse off than the general population during the COVID-19 pandemic? : A population-based study from Norway, Denmark and Iceland during the pre-vaccination era
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- Johansson, Anna L., V (author)
- Karolinska Institutet,Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway.;Karolinska Inst, Dept Med Epidemiol & Biostat, POB 281, SE-17177 Stockholm, Sweden.
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- Skog, Anna (author)
- Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway.
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- Johannesen, Tom Borge (author)
- Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway.
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- Myklebust, Tor age (author)
- Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway.;More & Romsdal Hosp Trust, Dept Res & Innovat, Alesund, Norway.
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- Skovlund, Charlotte Wessel (author)
- Danish Canc Soc Res Ctr, Danish Canc Soc, Canc Surveillance & Pharmacoepidemiol, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.
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- Morch, Lina Steinrud (author)
- Danish Canc Soc Res Ctr, Danish Canc Soc, Canc Surveillance & Pharmacoepidemiol, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.
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- Friis, Soren (author)
- Danish Canc Soc Res Ctr, Danish Canc Soc, Canc Surveillance & Pharmacoepidemiol, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.
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- Gamborg, Mads (author)
- Danish Canc Soc Res Ctr, Danish Canc Soc, Canc Surveillance & Pharmacoepidemiol, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.
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- Kristiansen, Marnar Frioheim (author)
- Fac Hlth Sci, Ctr Hlth Sci, Torshavn, Faroe Islands.;Natl Hosp Faroe Isl, Torshavn, Faroe Islands.
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- Pettersson, David (author)
- Natl Board Hlth & Welf, SE-10630 Stockholm, Sweden.
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- Olafsdottir, Elinborg J. (author)
- Iceland Canc Soc, ICS Res & Registrat Ctr, POB 5420, IS-105 Reykjavik, Iceland.
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- Birgisson, Helgi (author)
- Iceland Canc Soc, ICS Res & Registrat Ctr, POB 5420, IS-105 Reykjavik, Iceland.
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- Palsson, Runolfur (author)
- Landspitali The Natl Univ Hosp Iceland, Saemundargata 2, IS-102 Reykjavik, Iceland.;Univ Iceland, Reykjavik, Iceland.
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- Eythorsson, Elias (author)
- Landspitali The Natl Univ Hosp Iceland, Saemundargata 2, IS-102 Reykjavik, Iceland.
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- Irenaeus, Sandra (author)
- Uppsala universitet,Cancerimmunterapi,Akadem Sjukhuset, Reg Canc Ctr Cent Sweden, SE-75185 Uppsala, Sweden.
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- Lambe, Mats (author)
- Karolinska Inst, Dept Med Epidemiol & Biostat, POB 281, SE-17177 Stockholm, Sweden.;Akadem Sjukhuset, Reg Canc Ctr Cent Sweden, SE-75185 Uppsala, Sweden.
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- Ursin, Giske (author)
- Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway.;Univ Oslo, Inst Basic Med Sci, Oslo, Norway.;Univ Southern Calif, Dept Prevent Med, Los Angeles, CA USA.
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Karolinska Institutet Canc Registry Norway, POB 5313 Majorstuen, N-0304 Oslo, Norway;Karolinska Inst, Dept Med Epidemiol & Biostat, POB 281, SE-17177 Stockholm, Sweden. (creator_code:org_t)
- Elsevier, 2023
- English.
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In: The Lancet Regional Health. - : Elsevier. - 2666-7762. ; 31
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Abstract
Subject headings
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- Background In a population-based setting, we investigated the risks of testing positive for SARS-CoV-2 and developing severe COVID-19 outcomes among cancer patients compared with the general population.Methods In nationwide cohorts, we identified all individuals in Norway, Denmark and Iceland who tested positive for SARS-CoV-2 or had a severe COVID-19 outcome (hospitalisation, intensive care, and death) from March until December 2020, using data from national health registries. We estimated standardised incidence ratios (SIRs) with 95% confidence intervals (CIs) comparing cancer patients with the general population.Findings During the first wave of the pandemic, cancer patients in Norway and Denmark had higher risks of testing SARS-CoV-2 positive compared to the general population. Throughout 2020, recently treated cancer patients were more likely to test SARS-CoV-2 positive. In Iceland, cancer patients experienced no increased risk of testing positive. The risk of COVID-19-related hospitalisation was higher among cancer patients diagnosed within one year of hospitalisation (Norway: SIR = 2.43, 95% CI 1.89-3.09; Denmark: 2.23, 1.96-2.54) and within five years (Norway: 1.58, 1.35-1.83; Denmark: 1.54, 1.42-1.66). Risks were higher in recently treated cancer patients and in those diagnosed with haematologic malignancies, colorectal or lung cancer. Risks of COVID-19-related intensive care and death were higher among cancer patients. Interpretation Cancer patients were at increased risk of testing positive for SARS-CoV-2 during the first pandemic wave when testing availability was limited, while relative risks of severe COVID-19 outcomes remained increased in cancer patients throughout 2020. Recent cancer treatment and haematologic malignancy were the strongest risk factors.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Infektionsmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Infectious Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)
Keyword
- COVID-19
- Coronavirus disease 2019
- SARS-CoV-2
- Severe acute respiratory syndrome coronavirus 2
- Cancer
- Hospitalisation
- Critical care outcomes
- Intensive care
- Mortality
- Nordic
- Denmark
- Norway
- Iceland
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Johansson, Anna ...
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Skog, Anna
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Johannesen, Tom ...
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Myklebust, Tor a ...
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Skovlund, Charlo ...
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Morch, Lina Stei ...
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Friis, Soren
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Gamborg, Mads
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Kristiansen, Mar ...
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Pettersson, Davi ...
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Olafsdottir, Eli ...
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Birgisson, Helgi
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Palsson, Runolfu ...
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Eythorsson, Elia ...
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Irenaeus, Sandra
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Lambe, Mats
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Ursin, Giske
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Infectious Medic ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Health Sciences
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and Public Health Gl ...
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The Lancet Regio ...
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Uppsala University
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Karolinska Institutet