Observed versus predicted risk of 30-day potentially avoidable readmissions.

Observed versus predicted risk of 30-day potentially avoidable readmissions.</p

Univariate and multivariate analyses of the derivation cohort.

Univariate and multivariate analyses of the derivation cohort.</p

Potentially avoidable readmission risk score (PAR-Risk score).

Potentially avoidable readmission risk score (PAR-Risk score).</p

Baseline characteristics of the derivation cohort.

Baseline characteristics of the derivation cohort.</p

Study flowchart of all analyzed patients.

Study flowchart of all analyzed patients.</p

Additional file 1 of Dynamics of disease characteristics and clinical management of critically ill COVID-19 patients over the time course of the pandemic: an analysis of the prospective, international, multicentre RISC-19-ICU registry

Additional file 1. Online Supplementary Material