Table 1.

Interrater reliability, by disease subtype, among examiners with physical evaluation techniques.

Disease SubtypeEvaluation TechniqueKappa (95% CI)Significance
RA2-finger technique0.34 (0.24, 0.44)< 0.0001
4-finger technique0.41 (0.31, 0.51)< 0.0001
Stress0.31 (0.23, 0.39)< 0.0001
TJC0.22 (0.14, 0.28)< 0.0001
Visual at-rest Y/N0.63 (0.53, 0.73)< 0.0001
Visual at-rest grade0.40 (0.34, 0.46)< 0.0001
PsA2-finger technique0.19 (0.09, 0.29)< 0.0001
4-finger technique0.13 (0.03, 0.23)0.0061
Stress0.50 (0.43, 0.57)< 0.0001
TJC0.58 (0.50, 0.66)< 0.0001
Visual at-rest Y/N0.55 (0.45, 0.65)< 0.0001
Visual at-rest grade0.45 (0.37, 0.53)< 0.0001
  • RA: rheumatoid arthritis; PsA: psoriatic arthritis; TJC: tender joint count.