Fig. 1. Receiver operating characteristic curves to identify cut-offs of co-variates on admission in patients with mild/moderate SARS-CoV-2-infection.

These four co-variates were entering the final model and shown here, other co-variates were shown in Supplementary Fig. 1. a Age; b CRP; c PT; d SpO₂. CRP c-reactive protein, PT prothrombin time, SpO₂ blood oxygen saturation.