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Table 3 Multiple linear regression models for initial total SJCs and change in SJCsa

From: Decreases in serum levels of S100A8/9 (calprotectin) correlate with improvements in total swollen joint count in patients with recent-onset rheumatoid arthritis

Initial SJCs (n= 43, r2 = 0.260, F= 8.360; P= 0.001)b ΔSJCs (n= 41, r2 = 0.245, F= 13.974; P= 0.001)c
Variables Parameter estimate SEM t-value Pvalue Variable Parameter estimate SEM t-value Pvalue
Intercept 5.093 1.712 2.975 0.005 Intercept -5.192 1.148 -3.500 0.001
Initial CRP 0.147 0.071 2.067 0.045 ΔS100A8/9 0.001 0.000 3.738 0.001
Initial S100A8/9 0.001 0.000 2.010 0.051 - - - - -
  1. aSJCs, swollen joint counts; SEM, standard error of the mean; CRP, C-reactive protein. r2 values are adjusted. bExcluded predictors are age and initial S100A12. cExcluded predictors are age, initial S100A12, initial S100A8/9, initial CRP, ΔS100A12 and ΔCRP.