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Table 4 Clinical variables associated with anti-Rib-P, anti-Sm and anti-dsDNA levels in patients with SLE

From: Anti-ribosomal P protein IgG autoantibodies in patients with systemic lupus erythematosus: diagnostic performance and clinical profile

Variables Anti-Rib-Pa Anti-Smb Anti-dsDNAc
β coefficient P β coefficient P β coefficient P
Ethnicity (Caucasian) −0.190 0.034     
CRP, mg/dl    0.304 0.003   
Presence of serositisd    0.321 0.002   
Anti-RNP positive    0.297 0.003   
Disease duration, years      −0.246 0.005
SLEDAI2K      0.338 <0.001
Presence of renal disorderd      0.252 0.004
  1. Abbreviations: Anti-dsDNA, anti-double-stranded DNA; anti-Rib-P, anti-ribosomal P; anti-RNP: anti-ribonucleoprotein; anti-Sm, anti-Smith; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; SLE, systemic lupus erythematosus; SLEDAI2K: Systemic Lupus Erythematosus Disease Activity Index 2000. Multivariate analysis results from multiple linear regression analysis. The total explained variance of the model was a R 2= 0.036, b R 2= 0.325, and c R 2= 0.270. dIn accordance with American College of Rheumatology classification criteria.