Table 1.

Case fatality ratio (CFR) among different population age groups in the named countries

Country	Population age group	CFR (%)	References
China	40–49	0.4	[78]
	80+	14.8
Korea	80+	18.31	[81]
Singapore	60–69	1.84	[82]
	70–79	5.57
	90+	76.92
Japan	60–69	5.52
	70‐79	15.49
	80–89	28.77
	90+	33.22
Italy	40–49	0.7	[79]
	80+	27.7
	60+	96.9
United States	≥65	80	[77]