Table 1.

Sex and age distribution and SARS-CoV-2 infection status of study participants.

	SARS-CoV-2 naïve			SARS-CoV-2 breakthrough infection			Total
	Staff	Residents	Subtotal	Staff	Residents	Subtotal
Participants (n)	161	123	284	33	18	51	335
Female (%)	114 (71)	92 (75)	206 (73)	28 (85)	16 (89)	44 (86)	250 (75)
Age, years, median (IQR)	47(36–58)	88 (83–93)	66 (45–86)	38 (26–43)	90 (85–94)	43 (35–86)	62 (43–86)
Age group
18–29 years	21		21	9		9	30
30–39 years	29		29	9		9	38
40–49 years	40		40	11		11	51
50–59 years	36	1	37	2		2	39
60–69 years	22	2	24	2		2	26
70–79 years	13	14	27		2	2	29
80–89 years		56	56		7	7	63
90–103 years		50	50		9	9	59

IQR: interquartile range.