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Adult patients with lymphoma admitted for Covid\u201019 to 16 French hospitals in March and April, 2020 were included. Length of in\u2010hospital stay was analyzed as a competitor vs death. The study included 111 patients. The median age was 65\u2009years (range, 19\u201392). Ninety\u2010four patients (85%) had B\u2010cell non\u2010Hodgkin lymphoma. Within the 12\u2009months prior to hospitalization for Covid\u201019, 79 patients (71%) were treated for their lymphoma. Among them, 63 (57%) received an anti\u2010CD20 therapy. Fourteen patients (12%) had relapsed\/refractory disease. The median LOS was 14\u2009days (range, 1\u2013235). After a median follow\u2010up of 191\u2009days (3\u2013260), the 6\u2010month overall survival was 69%. In multivariable analyses, recent administration of anti\u2010CD20 therapy was associated with prolonged LOS (subdistribution hazard ratio 2.26, 95% confidence interval 1.42\u20133.6, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) and higher risk of death (hazard ratio 2.17, 95% confidence interval 1.04\u20134.52, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.039). An age\u2009\u2265\u200970\u2009years and relapsed\/refractory lymphoma were also associated with prolonged LOS and decreased overall survival. In conclusion, an age\u2009\u2265\u200970\u2009years, a relapsed\/refractory lymphoma and recent administration of anti\u2010CD20 therapy are risk factors for prolonged LOS and death for lymphoma patients hospitalized for Covid\u201019. These findings may contribute to guide the management of lymphoma during the pandemic, support evaluating specific therapeutic approaches, and raise questions on the efficacy and timing of vaccination of this particular population.<\/jats:p>","DOI":"10.1002\/ajh.26209","type":"journal-article","created":{"date-parts":[[2021,4,29]],"date-time":"2021-04-29T00:40:49Z","timestamp":1619656849000},"page":"934-944","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":145,"title":["Prolonged in\u2010hospital stay and higher mortality after Covid\u201019 among patients with <scp>non\u2010Hodgkin<\/scp> lymphoma treated with B\u2010cell depleting immunotherapy"],"prefix":"10.1002","volume":"96","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5024-1713","authenticated-orcid":false,"given":"R\u00e9my","family":"Dul\u00e9ry","sequence":"first","affiliation":[{"name":"Service d'H\u00e9matologie Clinique et de Th\u00e9rapie Cellulaire 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