Table 2.

Socio-demographic characteristics by primary outcome measure of COVID-19-associated mortality and all-cause mortality, with the time under risk in person-years for each event stratified by the vaccine dose

	Third-dose recipients a						Fourth-dose recipients
							Monovalent vaccine						BA.1 bivalent vaccine						BA.4–5 bivalent vaccine
	Person-time b		COVID-19-associated mortality		All-cause mortality		Person-time b		COVID-19-associated mortality		All-cause mortality		Person-time b		COVID-19-associated mortality		All-cause mortality		Person-time b		COVID-19-associated mortality		All-cause mortality
	Years	%	n	%	n	%	Years	%	n	%	n	%	Years	%	n	%	n	%	Years	%	n	%	n	%
Sex
Female	50 834	56.80%	194	47.90%	3503	53.10%	61 365	55.22%	154	49.52%	3678	57.17%	5314	53.44%	4	50.0%	115	48.12%	2522	54.07%	2	25.0%	82	51.25%
Male	38 718	43.20%	211	52.10%	3095	46.90%	49 758	44.78%	157	50.48%	2755	42.83%	4630	46.56%	4	50.0%	124	51.88%	2143	45.93%	6	75.0%	78	48.75%
Age (years)
75–79	43 998	49.10%	79	19.50%	1510	22.90%	51 701	46.53%	57	18.33%	1057	16.43%	5648	56.80%	2	25.0%	61	25.52%	2502	53.64%	4	50.0%	42	26.25%
80–84	23 589	26.30%	70	17.30%	1446	21.90%	31 723	28.55%	58	18.65%	1346	20.92%	2444	24.57%	2	25.0%	41	17.15%	1169	25.07%	0	–	36	22.50%
85–89	13 689	15.30%	102	25.20%	1605	24.30%	17 388	15.65%	82	26.37%	1651	25.66%	1230	12.37%	1	12.5%	73	30.54%	636	13.63%	2	25.0%	42	26.25%
90+	8275	9.20%	154	38.00%	2037	30.90%	10 311	9.28%	114	36.66%	2379	36.98%	623	6.26%	3	37.5%	64	27.00%	358	8.00%	2	25.0%	40	25.00%
Region
Innlandet	8305	9.30%	33	8.10%	592	9.00%	9157	8.00%	31	9.97%	570	8.86%	1145	11.51%	3	37.5%	29	12.13%	409	8.76%	0	–	18	11.25%
Trøndelag	8205	9.20%	27	6.70%	604	9.20%	10 046	9.04%	27	8.68%	596	9.26%	847	8.52%	1	12.5%	23	9.62%	281	6.01%	1	12.5%	10	6.25%
Nord-Norge	10 978	12.30%	40	9.90%	739	11.20%	8403	7.56%	22	7.07%	514	7.99%	1000	10.06%	0	0.0%	16	6.69%	565	12.11%	0	–	16	10.00%
Oslo & Viken	27 028	30.20%	132	32.60%	1948	29.50%	38 520	34.66%	109	35.05%	2155	33.50%	3004	30.21%	2	25.0%	68	28.45%	1924	41.25%	3	37.5%	54	33.75%
Agder & Sørøstlandet	13 006	14.50%	46	11.40%	975	14.80%	16 673	15.00%	39	12.54%	975	15.16%	1473	14.81%	0	–	27	11.30%	739	15.85%	3	37.5%	39	24.38%
Vestlandet	22 031	24.60%	127	31.40%	1740	26.40%	28 324	25.49%	83	26.69%	1623	25.23%	2475	24.89%	2	25.0%	76	31.80%	747	16.01%	1	12.5%	23	14.38%
Risk group
None	42 089	47.00%	120	29.60%	1929	29.20%	51 804	46.62%	113	36.00%	2010	31.00%	4741	48.00%	3	37.5%	76	31.80%	2211	47.40%	2	25.0%	46	28.75%
Medium	41 036	45.80%	220	54.30%	3622	54.90%	50 849	45.76%	165	53.05%	3555	55.26%	4505	45.31%	4	50.0%	126	52.72%	2120	45.45%	5	62.5%	91	56.88%
High	6427	7.20%	65	16.00%	1047	15.90%	8469	7.62%	33	10.61%	868	13.49%	698	7.02%	1	12.5%	37	15.00%	334	7.00%	1	12.5%	23	14.00%
LTCF resident
No	86 319	96.40%	277	68.40%	5096	77.20%	10 5061	94.55%	163	52.41%	3999	62.16%	9829	98.85%	8	100.0%	213	89.12%	4592	98.44%	8	100.0%	137	85.63%
Yes	3233	3.60%	128	31.60%	1502	22.80%	6061	5.45%	148	47.59%	2434	37.84%	115	1.16%	0	–	26	10.88%	73	1.56%	0	–	23	14.38%

LTCF, long-term care facility; COVID-19, coronavirus disease 2019; n, number.

^aIndividuals who received their third dose >24 weeks ago.

^bThe time under risk for third- and fourth-dose recipients until censoring or occurrence of the respective event.