Figures & data
Figure 1. A flow chart of the the patient cohort selection process.
Figure 2. Forest plot of the unadjusted univariate statistical analyses.
Table 1. Unmatched cohorts.
Figure 3. Forest plot of the propensity score matched univariate statistical analyses.
Table 2. Logistic regression.
Table 3. Propensity score matched cohorts.
Data availability statement
The data supporting the findings of this study are available upon formal request from the Ministry of Health of the Republic of Bulgaria. Access to these data is subject to restrictions and was obtained with permission for this specific study. For data access, please visit https://coronavirus.bg/ in compliance with the Ministry of Health’s policies and guidelines.