Table 2.

Calculations of stratified infection fatality rates in South Korea

Age	Population	Deaths (2022)	Cases	IFR**	IFRc
0-19	8,534,281	52	6,634,482	0.000006	0.000006
20-29	6,410,012	65	4,196,212	0.000012	0.000012
30-39	6,915,849	110	4,199,519	0.000021	0.000017
40-49	8,022,763	354	4,386,635	0.000065	0.000052
50-59	8,538,680	1029	3,731,215	0.000221	0.000177
60-69	7,044,982	2791	3,104,523	0.000719	0.000575
70-79	3,784,990	5742	1,572,122	0.002922	0.002338
80-89	1,788,653	16176*	947,488*	0.009631	0.005779
90-				0.038524	0.023114

Population as of 2022; number of COVID-19 cases and deaths from the South Korea government Central Disease Control Headquarters as of December 27, 2022 (https://ncov.kdca.go.kr/en/bdBoardList.do?brdId=16&brdGubun=161&dataGubun=&ncvContSeq=&contSeq=&board_id=), subtracting the fatality impact per age group as of December 31, 2021 using historically archived data in Demography of COVID-19 database (https://dc-covid.site.ined.fr/en/data/korea/).

IFR: infection fatality rate.

IFRc: infection fatality rate among community-dwelling population (excluding residents of long-term care facilities).

^*presented for all people aged 80 and over.

^**assuming that cases in each age-stratum during the 5^th wave is 1.25-times the number of cases recorded in the previous column.