{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T18:13:05Z","timestamp":1765822385112,"version":"3.48.0"},"reference-count":43,"publisher":"BMJ","issue":"4","license":[{"start":{"date-parts":[[2022,4,21]],"date-time":"2022-04-21T00:00:00Z","timestamp":1650499200000},"content-version":"unspecified","delay-in-days":20,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002809","name":"Government of Catalonia","doi-asserted-by":"crossref","award":["2017SGR1085"],"award-info":[{"award-number":["2017SGR1085"]}],"id":[{"id":"10.13039\/501100002809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100002809","name":"Government of Catalonia","doi-asserted-by":"crossref","award":["2017SGR319"],"award-info":[{"award-number":["2017SGR319"]}],"id":[{"id":"10.13039\/501100002809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Instituto de Salud Carlos III (ISCIII), European Regional Development Fund","award":["CM19\/00216"],"award-info":[{"award-number":["CM19\/00216"]}]},{"name":"CERCA Programme \/ Generalitat de Catalunya","award":["No grant number"],"award-info":[{"award-number":["No grant number"]}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2022,3,18]]},"published-print":{"date-parts":[[2022,4]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Patients with cancer are at higher risk for severe COVID-19 infection. COVID-19 surveillance of workers in oncological centres is crucial to assess infection burden and prevent transmission. We estimate the SARS-CoV-2 seroprevalence among healthcare workers (HCWs) of a comprehensive cancer centre in Catalonia, Spain, and analyse its association with sociodemographic characteristics, exposure factors and behaviours.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Cross-sectional study (21 May 2020\u201326 June 2020).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>A comprehensive cancer centre (Institut Catal\u00e0 d\u2019Oncologia) in Catalonia, Spain.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>\n                      All HCWs (N\n                      <jats:italic>=<\/jats:italic>\n                      1969) were invited to complete an online self-administered epidemiological survey and provide a blood sample for SARS-CoV-2 antibodies detection.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Primary outcome measure<\/jats:title>\n                    <jats:p>Prevalence (%) and 95% CIs of seropositivity together with adjusted prevalence ratios (aPR) and 95% CI were estimated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 1266 HCWs filled the survey (participation rate: 64.0%) and 1238 underwent serological testing (97.8%). The median age was 43.7 years (p25\u2013p75: 34.8\u201351.0 years), 76.0% were female, 52.0% were nursing or medical staff and 79.0% worked on-site during the pandemic period. SARS-CoV-2 seroprevalence was 8.9% (95% CI 7.44% to 10.63%), with no differences by age and sex. No significant differences in terms of seroprevalence were observed between onsite workers and teleworkers. Seropositivity was associated with living with a person with COVID-19 (aPR 3.86, 95% CI 2.49 to 5.98). Among on-site workers, seropositive participants were twofold more likely to be nursing or medical staff. Nursing and medical staff working in a COVID-19 area showed a higher seroprevalence than other staff (aPR 2.45, 95% CI 1.08 to 5.52).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>At the end of the first wave of the pandemic in Spain, SARS-CoV-2 seroprevalence among Institut Catal\u00e0 d\u2019Oncologia HCW was lower than the reported in other Spanish hospitals. The main risk factors were sharing household with infected people and contact with COVID-19 patients and colleagues. Strengthening preventive measures and health education among HCW is fundamental.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2021-056637","type":"journal-article","created":{"date-parts":[[2022,5,2]],"date-time":"2022-05-02T00:41:47Z","timestamp":1651452107000},"page":"e056637","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["COVID-19 among workers of a comprehensive cancer centre between first and second epidemic waves (2020): a seroprevalence study in Catalonia, Spain"],"prefix":"10.1136","volume":"12","author":[{"given":"Paula","family":"Peremiquel-Trillas","sequence":"first","affiliation":[{"name":"Cancer Epidemiology Research Programme, Cancer Epidemiology and Prevention Department, Institut Catal\u00e0 d\u2019Oncologia (ICO), L\u2019Hospitalet de Llobregat, Spain"},{"name":"Epidemiology and Public Health Programme, Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge (IDIBELL), L\u2019Hospitalet de Llobregat, Spain"},{"name":"CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain"},{"name":"School of Medicine and Clinical Sciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9742-2725","authenticated-orcid":false,"given":"Anna","family":"Saura-L\u00e1zaro","sequence":"additional","affiliation":[{"name":"Cancer Epidemiology Research Programme, Cancer Epidemiology and Prevention Department, Institut Catal\u00e0 d\u2019Oncologia (ICO), L\u2019Hospitalet de Llobregat, Spain"},{"name":"Epidemiology and Public Health Programme, Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge (IDIBELL), L\u2019Hospitalet de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1422-4614","authenticated-orcid":false,"given":"Yolanda","family":"Benavente-Moreno","sequence":"additional","affiliation":[{"name":"Cancer Epidemiology Research Programme, Cancer Epidemiology and Prevention Department, Institut Catal\u00e0 d\u2019Oncologia (ICO), L\u2019Hospitalet de Llobregat, Spain"},{"name":"Epidemiology and Public Health Programme, Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge (IDIBELL), L\u2019Hospitalet de Llobregat, Spain"},{"name":"CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7874-3707","authenticated-orcid":false,"given":"Delphine","family":"Casabonne","sequence":"additional","affiliation":[{"name":"Cancer Epidemiology Research Programme, Cancer Epidemiology and Prevention Department, Institut Catal\u00e0 d\u2019Oncologia (ICO), 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Situaci\u00f3n de COVID-19 en Espa\u00f1a. Casos diagnosticados a partir de 10 de Mayo. Instituto de Salud Carlos III; red Nacional de Vigilancia Epidemiol\u00f3gica. Espa\u00f1a, 2020. Available: https:\/\/www.isciii.es\/QueHacemos\/Servicios\/VigilanciaSaludPublicaRENAVE\/EnfermedadesTransmisibles\/Documents\/INFORMES\/Informes%20COVID-19\/Informe%20COVID-19.%20N%c2%ba%2056_09%20de%20diciembre%20de%202020.pdf"},{"key":"2025121510090115000_12.4.e056637.4","unstructured":"Centro de Coordinaci\u00f3n de Alertas y, Emergencias Sanitarias . Actualizaci\u00f3n no 517. Enfermedad por el coronavirus (COVID-19). 03.12.2021 [Internet]. Available: https:\/\/www.sanidad.gob.es\/profesionales\/saludPublica\/ccayes\/alertasActual\/nCov\/documentos\/Actualizacion_517_COVID-19.pdf [Accessed 01 Feb 2022]."},{"key":"2025121510090115000_12.4.e056637.5","doi-asserted-by":"publisher","DOI":"10.1158\/2159-8290.CD-20-0422"},{"key":"2025121510090115000_12.4.e056637.6","doi-asserted-by":"crossref","first-page":"7161","DOI":"10.1002\/cam4.3384","article-title":"COVID-19 and oncology: service transformation during pandemic","volume":"9","author":"Leung","year":"2020","journal-title":"Cancer Med"},{"key":"2025121510090115000_12.4.e056637.7","unstructured":"Institut Catal d\u2019Oncologia [Internet]. 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