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. 2023 Sep 5;11(5):E790–E798. doi: 10.9778/cmajo.20220152

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This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY-NC-ND 4.0) licence, which permits use, distribution and reproduction in any medium, provided that the original publication is properly cited, the use is noncommercial (i.e., research or educational use), and no modifications or adaptations are made. See: https://creativecommons.org/licenses/by-nc-nd/4.0/

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Figure 2: — Overall validation estimates by quarter (Q): inpatient cohort. Note: NPV = negative predictive value, PPV = positive predictive value, Q1 = April 2020–June 2020, Q2 = July 2020–September 2020, Q3 = October 2020–December 2020, Q4 = January 2021–March 2021. Error bars represent 95% confidence intervals.