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Table 3 Spearman’s rank correlation analysis of serum thymic stromal lymphopoietin levels versus laboratory/clinical parameters in 36 patients with HCV-related cryoglobulinemic vasculitis

From: Thymic stromal lymphopoietin in hepatitis C virus-related cryoglobulinemic vasculitis: gene expression level and protein distribution

Parameter r coefficient 95% confidence interval P value a
Epidemiology    
 Age (years) −0.2144 −0.5147 to 0.1328 0.2092
Virology    
 Serum HCV RNA (log IU/ml) −0.2000 −0.5307 to 0.1836 0.2893
 Serum HCV nonenveloped core protein (pg/ml) 0.4182 0.0768 to 0.6718 0.02
Laboratory    
 Cryocrit (%) −0.0845 −0.4104 to 0.2605 0.6241
 Rheumatoid factor (IU/ml) −0.1182 −0.4520 to 0.2447 0.5125
 IgM (mg/dl) 0.1000 −0.2619 to 0.4373 0.5798
 C1q (mg/dl) 0.6571 0.2605 to 0.8640 0.0030
 C3 (mg/dl) 0.7335 0.5137 to 0.8629 0.0001
 C4 (mg/dl) 0.1388 −0.2085 to 0.4551 0.4194
 ALT (IU/l) 0.1763 −0.2072 to 0.5129 0.3514
 Peripheral CD20+ cells (%) 0.7143 0.3581 to 0.8890 0.0009
  1. HCV, hepatitis C virus. a P <0.05 was defined as significant.