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Table 3 Determining model fit for rheumatoid arthritis disease activity (as measured by the DAS28-ESR) by serum SAA and CRP

From: Differential response of serum amyloid A to different therapies in early rheumatoid arthritis and its potential value as a disease activity biomarker

 

AIC fit statistic

ΔAIC

BIC fit statistic

Parameter estimate (SE)

P value

Overall

 DAS28-ESR vs. SAA

6854.0

305

6876.1

0.006(0.001)

<.0001

 DAS28-ESR vs. CRP

7159.3

 

7181.5

0.038(0.002)

<.0001

By treatment – ETN

 DAS28-ESR vs. SAA

4068.2

159

4087.7

0.007(0.001)

<.0001

 DAS28-ESR vs. CRP

4227.2

 

4246.8

0.041(0.003)

<.0001

By treatment – DMARD

 DAS28-ESR vs. SAA

2737.6

137

2762.2

0.006(0.002)

0.0007

 DAS28-ESR vs. CRP

2875.0

 

2899.7

0.029(0.003)

<.0001

  1. AIC Akaike information criterion, BIC Bayesian information criterion, SE standard error, DAS28 disease activity score in 28 joints, ESR erythrocyte sedimentation rate, SAA serum amyloid A, CRP C-reactive protein, ETN etanercept, DMARD disease-modifying anti-rheumatic drug