Table 2.

Comparison of ESR and CRP values by swollen joint count.

Swollen Joint CountTotal No. with Both MeasuresBoth Normal, n (%)CRP Elevated and ESR Normal, n (%)ESR Elevated and CRP Normal, n (%)Both Elevated, n (%)Correlation Coefficient Between ESR and CRP
0178131 (73.6)8 (4.5)27 (15.2)12 (6.7)0.598
1–4416211 (50.7)39 (9.4)76 (18.3)90 (21.6)0.425
>41775522 (29.4)199 (11.2)350 (19.7)704 (39.7)0.482
Overall2373864 (36.4)247 (10.4)454 (19.1)808 (34.1)0.591
  • CRP: C-reactive protein; ESR: erythrocyte sedimentation rate.