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. 2023 Jan 11;61(2):67–74. doi: 10.1097/MLR.0000000000001804

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This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Predicted probability for COVID-19 positivity with 95% CIs. Predicted probabilities calculated from a multilevel logistic regression model controlling for patient-level covariates and health system.