Table 1.

Characteristics of the Study Population

	Total (N = 382)		SARS-CoV-2–Infected (n = 293)		SARS-CoV-2–Uninfected (n = 89)		P Value
Characteristic	n (or median)	% (or IQR)	n (or median)	% (or IQR)	n (or median)	% (or IQR)
Age, y	9.7	(4.8–15.9)	10.4	(4.8–16.4)	8.7	(5.0–14.4)	.37
Sex							.80
Female	204	53%	158	54%	46	52%
Male	178	47%	135	46%	43	48%
Race							<.0001
Black or African-American	26	7%	17	6%	9	10%
Latino or Hispanic-American	307	81%	256	88%	51	57%
Non-Hispanic White	45	12%	17	6%	28	31%
Other	2	<1%	1	<1%	1	1%
Number of household members	5	(4–6)	5	(4–6)	5	(4–6)	.97
Close contacts with SARS-CoV-2
Parent	217	57%	159	54%	134	46%	.09
Sibling	171	45%	145	49%	26	29%	.001
Other	103	27%	77	26%	26	29%	.68
Comorbidities
Provider-diagnosed asthma	34	9%	19	6%	15	17%	.005
Obesity (body mass index ≥95th percentile for age)	108	28%	88	30%	20	22%	.18

Abbreviations: IQR, interquartile range; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.