Journal of Rheumatic Diseases

Table. 2.

Correlation of continuous variables with the CH50 at diagnosis in AAV patients

AAV patients Correlation coefficient (r) p-value
Age (yr) 0.202 0.043
BVAS −0.241 0.015
FFS 0.030 0.762
White blood cell count (/mm3) −0.101 0.317
Haemoglobin (g/dL) −0.013 0.869
Platelet count (×1,000/mm3) −0.014 0.891
Fasting glucose (mg/dL) 0.299 0.002
Blood urea nitrogen (mg/dL) 0.083 0.408
Serum creatinine (mg/dL) 0.011 0.915
Total protein (g/dL) 0.102 0.308
Serum albumin (g/dL) 0.129 0.198
Alkaline phosphatase (IU/L) 0.013 0.900
Aspartate aminotransferase (IU/L) 0.039 0.699
Alanine aminotransferase (IU/L) 0.028 0.781
Total bilirubin (mg/dL) −0.003 0.974
ESR (mm/hr) 0.122 0.225
CRP (mg/L) −0.002 0.988
C3 (mg/dL) 0.061 0.555
C4 (mg/dL) 0.584 <0.001

CH50: total haemolytic complement activity, AAV: ANCA- associated vasculitis, ANCA: antineutrophil cytoplasmic antibody, BVAS: Birmingham Vasculitis Activity Score, FFS: Five-Factor score, ESR: erythrocyte sedimentation rate, CRP: C-reactive protein, C3: complement 3, C4: complement 4.

J Rheum Dis 2021;28:85~93 https://doi.org/10.4078/jrd.2021.28.2.85
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