High vaccine effectiveness against severe COVID-19 in the elderly in Finland before and after the emergence of Omicron

Table 3 Cases, person-years and cumulative risk (per 100,000) by vaccine, dose and days since last vaccination

	COVID-19-related hospital admission			COVID-19-related ICU admission
	Cases	Person-years	Risk^a	Cases	Person-years	Risk^a
Not vaccinated	793	244 838	1313	159	244 856	238
Comirnaty + Comirnaty 14–90	33	144 412	108	< 5	144 413	8
Comirnaty + Comirnaty 91–180	210	158 116	277	26	158 121	29
Comirnaty + Comirnaty 181 +	200	31 354	457	22	31 360	55
Comirnaty + Comirnaty + Comirnaty 14–60	107	69 468	84	9	69 472	3
Comirnaty + Comirnaty + Comirnaty 61 +	359	74 262	125	26	74 271	55
Comirnaty + Comirnaty + Spikevax 14–60	28	9222	118	5	9222	13
Comirnaty + Comirnaty + Spikevax 61 +	39	5601	325	< 5	5602	4
Spikevax + Spikevax 14–90	5	16 589	201	0	16 589	0
Spikevax + Spikevax 91–180	34	17 796	277	< 5	17 797	45
Spikevax + Spikevax 181 +	23	3315	433	< 5	3316	30
Spikevax + Spikevax + Comirnaty 14–60	6	2167	137	0	2167	0
Spikevax + Spikevax + Comirnaty 61 +	10	2092	70	0	2092	0
Spikevax + Spikevax + Spikevax 14–60	8	6630	27	0	6630	0
Spikevax + Spikevax + Spikevax 61 +	41	5948	109	0	5949	0
Vaxzevria + Vaxzevria 14–90	< 5	8248	16	< 5	8248	10
Vaxzevria + Vaxzevria 91–180	23	9067	205	5	9067	13
Vaxzevria + Vaxzevria + Comirnaty 14–60	< 5	3044	24	0	3044	0
Vaxzevria + Vaxzevria + Comirnaty 61 +	12	2434	363	< 5	2434	307

ISSN: 1471-2334