TABLE 1. Demographic characteristics and vaccination history of persons who attended a large, indoor convention in New York City and had a SARS-CoV-2 test result during November 18–December 5 reported by health department COVID-19 surveillance systems, by test result — 39 U.S. jurisdictions, November–December 2021.

Characteristic	No. (%)			p-value*
	Total	Positive test	Negative test
	(N = 4,560)	(n = 119)	(n = 4,441)
Demographic
Sex
Known no.†	4,485 (98.4)	116 (97.5)	4,369 (98.4)	NA
Male	2,364 (52.7)	54 (46.6)	2,310 (52.9)	0.18
Female	2,121 (47.3)	62 (53.4)	2,059 (47.1)
Median age, yrs, (IQR)	26.1 (22.2–31.4)	26.5 (23.0–36.6)	26.1 (22.2–31.4)	0.18
State of residence
New York	3,967 (87.0)	65 (54.6)	3,902 (87.9)	<0.01
Outside of New York	593 (13.0)	54 (45.4)	539 (12.1)
Vaccination history
Vaccination status
Known no.†	3,845 (84.3)	88 (73.9)	3,757 (84.6)	NA
Primary vaccination series received	3,248 (84.5)	80 (90.9)	3,168 (84.3)	0.17
Booster dose received	467 (12.1)	5 (5.7)	462 (12.3)
Partially vaccinated	130 (3.4)	3 (3.4)	127 (3.4)
Days from booster dose to test date §
Known no.†	467 (100)	5 (100)	462 (100)	NA
Median	34	14	34	<0.01
IQR	22–66	12–20	22–66	NA
Days from primary vaccination series to test date ¶
Known no.†	3,248 (100)	80 (100)	3,168 (100)	NA
Median	207	210	207	0.34
IQR	188–225	193–232	187–225	NA

Abbreviation: NA = not applicable.

* Testing for statistical significance was conducted using nonparametric tests (i.e., Wilcoxon rank-sum) to compare continuous data and Pearson’s chi-square or Fisher's exact test to compare categorical data. Statistical significance was defined as p<0.05.

^† “Known no.” is defined as number of persons for individual variables that did not have missing data.

^§ Percentage among those who received a booster dose.

^¶ Percentage among those who received a primary vaccination series.