TABLE 2.

Comparison of CT Values According To Age, Presence of Symptoms, Disease Severity and Time From Symptom Onset to Sample Collection

Variables	Categories	n	Ct Value (Median)	Ct Value (IQR)	P
Age (y)	<2	106	20.6	17.3–27.3	<0.001
	2–4	62	23.8	20.3–31.4
	5–9	90	24.4	18.8–30.9
	>10	161	24.5	19.8–31.8
Presence of symptoms	Asymptomatic	105	29.0	23.5–32.9	<0.001
	Symptomatic	314	22.1	18.4–22.1
Severity	Asymptomatic	105	29.0	23.5–32.9	<0.001
	Mild	296	21.8	18.4–28.5
	Moderate	7	27.3	24.2–33.1
	Severe	7	28.0	17.8–32.3
	Critical	4	22.2	19.6–27.4
Time from onset of symptoms to sample collection (d)	<4	257	21.1	18.1–27.5	<0.001
	≥4	57	26.3	21.9–32.7

The bold refers to statistical significance between groups.