CRP and COVID-19: For the glucose level, the area under the ROC curve for AUC was 0.649, CI [0.612; 0.685]; for creatinine it was 0.581, CI [0.543; 0.618]; for CRP it was 0.600, CI [0.562; 0.637]; for LDL it was 0.542, CI [0.504; 0.581]; and for previous COVID-19 it was 0.558, CI [0.519; 0.596].