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. 2022 Nov 23;12(11):e066258. doi: 10.1136/bmjopen-2022-066258

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© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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HR for death over time in residents with SARS-CoV-2, as compared with controls in (A) the main analysis and (B) in the secondary analysis. Estimates were obtained using flexible parametric models with restricted cubic splines (four knots in default positions). The shaded areas show the 95% CI.