Fig. 3

Clinical course of all COVID-19 patients with fatal and survival outcomes, and survival analysis for fatal outcome by competing risk model in China to 29 March 2020. Survival analysis based on age (< 50, 50–60, 60–70, and ≥ 70 years old) (a), sex (b) and interval from symptom onset to hospital admission (c). The cumulative incidence is plotted. The case group included all 118 death patients outside Hubei province and 443 deaths from six hospitals in Wuhan. The control group included the survival patients from the six hospitals (1719 cases) and a part outside Hubei province (3200 cases)