TABLE 2.

Characteristics of symptomatic adults seeking outpatient medical care or SARS‐CoV‐2 clinical testing by mRNA COVID‐19 verified vaccination status, US Flu VE Network, October 2021–February 2022

	Unvaccinated		2 doses (14–149 days)		2 doses (≥150 days)		3 doses
	N	Row %	N	Row %	N	Row %	N	Row %	P value a
Total	798	21	256	7	1681	44	1112	29
Age group, y									<0.01
18–49	566	24	185	8	1099	46	524	22
50–64	181	19	63	7	399	41	320	33
≥65	51	10	8	2	183	36	268	53
Site									<0.01
California	15	3	24	5	268	55	179	37
Michigan	50	14	15	4	183	52	106	30
Pennsylvania	208	33	29	5	292	46	102	16
Tennessee	56	12	44	10	194	43	161	35
Texas	130	31	49	12	179	43	63	15
Washington	12	3	23	6	210	52	161	40
Wisconsin	327	30	72	7	355	32	340	31
Sex b									0.09
Female	496	20	168	7	1086	43	752	30
Male	302	23	88	7	589	44	359	27
Race/ethnicity c									<0.01
Black, non‐Hispanic	61	30	27	13	76	37	42	20
Hispanic	45	13	29	8	199	56	82	23
Other, non‐Hispanic	32	10	16	5	170	52	108	33
White, non‐Hispanic	646	22	180	6	1207	42	861	30
Self‐reported chronic medical condition d									<0.01
No	584	22	193	7	1190	45	685	26
Yes	205	18	61	5	461	41	405	36
High‐risk exposure									<0.01
No	406	21	134	7	916	46	523	26
Yes	392	21	122	7	765	41	589	32
Self‐reported prior infection e									<0.01
No	626	19	198	6	1466	45	1001	30
Yes (6 missing)	169	32	55	10	200	38	105	20	<0.01
<3 months ago	123	40	25	8	96	32	60	20
≥3 months ago	45	21	29	13	101	46	44	20
Product among vaccinated (2 and 3 doses)
Moderna			64	6	636	61	338	33
Pfizer‐BioNTech			190	10	1045	54	714	37
Combination			2	3	0	0	60	97
Fever f									<0.01
No	325	17	120	6	795	42	642	34
Yes	468	24	135	7	862	45	453	24

^a P value for chi‐square statistic.

^b Seven participants missing data on sex.

^c Sixty‐six participants missing data on race and/or ethnicity.

^d Sixty‐three participants missing data on chronic medical condition.

^e Twenty‐seven participants missing data on self‐reported prior SARS‐CoV‐2 infection.

^f Forty‐seven participants missing data on presence of fever.