1. SARS-CoV-2 lineage B.1.1.7 is associated with greater disease severity among hospitalised women but not men: multicentre cohort study
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Judith Breuer, Catherine F Houlihan, Nick Freemantle, David Partridge, Gaia Nebbia, Jacqui Prieto, Gee Yen Shin, Andrew Copas, Oliver Stirrup, Kenneth Laing, Rachel Williams, Helen Wheeler, Paul Randell, Ana da Silva Filipe, Maria-Teresa Cutino-Moguel, Tommy Rampling, Tabassum Khan, James Price, Eleni Nastouli, Katie Johnson, Sharon Glaysher, Scott Elliott, Helen Umpleby, Emanuela Pelosi, Emma Thomson, Cristina Venturini, Anna Riddell, Alison Cox, Andrew C Hayward, Malin Bergström, David Harrington, Charlotte Williams, Tanzina Haque, Dianne Irish, Adrienn Angyal, Marios Margaritis, Moira Spyer, Florencia Boshier, José Afonso Guerra-Assunção, Adela Alcolea-Medina, Angela Beckett, Themoula Charalampous, Raghavendran Kulasegaran Shylini, Beatrix Kele, Irene Monahan, Guy Mollett, Matthew Parker, Sunando Roy, Joshua Taylor, Sophie Weller, Eleri Wilson-Davies, Phillip Wade, Joseph Hughes, Tabitha Mahungu, Cassie Pope, Samuel Robson, Kordo Saeed, Thushan de Silva, Luke Snell, Adam A Witney, James Blackstone, Leanne Hockey, Georgia Marley, Christine Peters, Flavia Flaviani, Bindi Patel, Tom G S Williams, Rahul Batra, Jonathan D Edgeworth, Pinglawathee Madona, Jennifer Hart, Juanita Pang, Helena Tutill, Nadua Bayzid, Marius Cotic, Luke Green, Benjamin Lindsey, Amy State, Alison Cope, Peijun Zhang, Max Whiteley, Marta Gallis Ramalho, Stella Christou, Stavroula Louka, Hailey Hornsby, Benjamin Foulkes, Paige Wolverson, Joe Heffer, Nikki Smith, Salman Goudarzi, Chris Fearn, Kate Cook, Katie Loveson, Adhyana Mahamana, Buddhini Samaraweera, Siona Silveira, Stephen Aplin, Sarah Jeremiah, Matthew Harvey, Thea Sass, Ngee Keong Tan, Claudia Cardoso Pereira, Dan Frampton, Matt Byott, Judith Heaney, Emilie Sanchez, and Stavroula M Paraskevopoulou
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Medicine ,Diseases of the respiratory system ,RC705-779 - Abstract
Background SARS-CoV-2 lineage B.1.1.7 has been associated with an increased rate of transmission and disease severity among subjects testing positive in the community. Its impact on hospitalised patients is less well documented.Methods We collected viral sequences and clinical data of patients admitted with SARS-CoV-2 and hospital-onset COVID-19 infections (HOCIs), sampled 16 November 2020 to 10 January 2021, from eight hospitals participating in the COG-UK-HOCI study. Associations between the variant and the outcomes of all-cause mortality and intensive therapy unit (ITU) admission were evaluated using mixed effects Cox models adjusted by age, sex, comorbidities, care home residence, pregnancy and ethnicity.Findings Sequences were obtained from 2341 inpatients (HOCI cases=786) and analysis of clinical outcomes was carried out in 2147 inpatients with all data available. The HR for mortality of B.1.1.7 compared with other lineages was 1.01 (95% CI 0.79 to 1.28, p=0.94) and for ITU admission was 1.01 (95% CI 0.75 to 1.37, p=0.96). Analysis of sex-specific effects of B.1.1.7 identified increased risk of mortality (HR 1.30, 95% CI 0.95 to 1.78, p=0.096) and ITU admission (HR 1.82, 95% CI 1.15 to 2.90, p=0.011) in females infected with the variant but not males (mortality HR 0.82, 95% CI 0.61 to 1.10, p=0.177; ITU HR 0.74, 95% CI 0.52 to 1.04, p=0.086).Interpretation In common with smaller studies of patients hospitalised with SARS-CoV-2, we did not find an overall increase in mortality or ITU admission associated with B.1.1.7 compared with other lineages. However, women with B.1.1.7 may be at an increased risk of admission to intensive care and at modestly increased risk of mortality.
- Published
- 2021
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