TABLE 4: CXCL9, CXCL10, CXCL11, and CXCR3 levels according to the severity of lung involvement on imaging.

Parameter	Mild to moderate involvement	Severe involvement	p
	Mean [SD]	Mean [SD]
CXCL9 (pg/mL)	596 [223]	1351 [529]	<0.001
CXCL10 (pg/mL)	196 [53]	314 [138]	<0.001
CXCL11 (pg/mL)	190 [79]	304 [90]	<0.001
CXCR3 (pg/mL)	604 [184]	1068 [363]	<0.001