Figure 6. Kaplan-Meier curves and plots of hospital stays. (A) Survival probability of elderly patients ≥70 years versus young patients <70 years. (B) Survival probability of males versus females with COVID-19. (C) Survival probability of patients with versus without any comorbidity. (D) Survival probability of patients with versus without cerebrovascular disease. (E) Length of hospital stays under the conditions of patient age, gender, and comorbidities. Colored cells indicate the number of observed cases regarding the length of hospital stay. Days from symptom onset to clinical outcomes are shown in Supplementary Figure 3.