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. 2021 May 21:1–9. doi: 10.1159/000516309

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Copyright © 2021 by S. Karger AG, Basel

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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Fig. 2 — Relationship between the frequency of COVID-19 cases and several aspects of stroke care compared to the prepandemic period. Joint plots showing the univariate distributions and the relationships, with Spearman's rho correlations, between weekly cases of COVID-19 and several aspects of stroke care at the main sanitary regions in Catalonia. The figures show points representing weekly ratios in each region relative to median values during the prepandemic period, with the linear regression fit line and bootstrap confidence intervals for the regression estimate. Note the strong correlation of COVID-19 cases with EMS alerts, the moderate negative correlation with the stroke code activations, and the slight correlation with times from onset to hospital door. In contrast, the number of COVID-19 cases and intrahospital delays to reperfusion treatments was uncorrelated. EMS, emergency medical services.