Table 3

Agreement of patient defined remission with remission according to the ACR-EULAR definitions using the traditional evaluator derived joint counts (REF) ('gold standard').

Boolean based without CRP

Boolean based with CRP

Index based CDAI*

Index based SDAI*

Patient derived REM

Gold standard REM

Patient derived REM

Gold standard REM

Patient derived REM

Gold standard REM

Patient derived REM

Gold standard REM

Patients in REM

N = 25

N = 34

N = 22

N = 28

N = 30

37

32

37

Patients not in REM

n = 171

N = 175

N = 177

N = 181

N = 147

172

164

172

Positive Predictive Value

0.74

0.71

0.81

0.86

Negative Predictive Value

0.98

0.98

0.85

0.95

CDAI, clinical disease activity index; REM, remission; SDAI, simplified disease activity index.

Radner et al. Arthritis Res Ther 2012 14:R61   doi:10.1186/ar3777