NPPB and COVID-19: The combination of Student t test and LFC analyses indicated that the 8 most significant candidate predictive parameters for COVID-19 severity status were lipase, C-reactive protein, procalcitonin level, erythrocyte sedimentation rate, brain natriuretic peptide, ferritin, D-dimer, and creatine kinase level, all of which showed P values <.001 and absolute LFCs >1.