COVID-19 Research Paper Volume 12, Issue 20 pp 19898—19910
Comparison of clinical characteristics of COVID-19 between elderly patients and young patients: a study based on a 28-day follow-up
Figure 5. Kaplan-Meier analysis of over-70 and under-70 group patients. Statistical analysis of the correlation of age with survival of COVID-19 patients. Survival curve showed a poorer prognosis in over-70 group patients.