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Table 3 Clinical and functional status at one-year follow-up by APR levels

From: Clinical disease activity and acute phase reactant levels are discordant among patients with active rheumatoid arthritis: acute phase reactant levels contribute separately to predicting outcome at one year

  Neither APR elevated APR levels discordant Both APR elevated P value
  n = 2,520 n = 1,058 n = 650  
mHAQ 0.34 ± 0.42 0.42 ± 0.49 0.47 ± 0.54 <0.0001
CDAI 10.45 ± 10.74 11.34 ± 10.72 12.75 ± 11.87 <0.0001
Tender joints 3.04 ± 5.36 3.01 ± 4.88 3.55 ± 5.87 0.1125*
Swollen joints 2.93 ± 4.65 3.31 ± 4.72 4.03 ± 5.27 <0.0001*
Patient global assessment 28.50 ± 24.81 31.53 ± 26.13 31.74 ± 26.68 <0.0007
MD global assessment 16.02 ± 16.31 18.23 ± 17.19 19.73 ± 19.73 <0.0001
  1. *Log-linear model (Poisson) - χ2 test. APR, acute phase reactant; mHAQ, modified Health Assessment Questionnaire; CDAI, Clinical Disease Activity Index.