Serum Amyloid A Is a Biomarker of Disease Activity and Health-Related Quality-of-Life in Patients with Antineutrophil Cytoplasmic Antibody-Associated Vasculitis

Table 4

Comparison of SAA between patients according to the presence of organ involvement.

Clinical manifestation	SAA (ng/mL)		value
	Yes	No
General			<0.001
Cutaneous			0.951
Mucous membrane and eye			0.002
Ear, nose, and throat			0.526
Pulmonary			0.030
Cardiovascular			0.954
Renal			0.002
Nervous system			0.087

Values are expressed as . SAA: serum amyloid A.