Table 2

Interobserver reproducibility for individual radiographic features among the three observers at the first and second reading for the Osteoarthritis Research Society (OARS) and line drawing atlases. Interobserver κ coefficients were calculated for a triad among the three observers and for three pairs between two observers. The range of the κ coefficients for three pairs between two observers is shown in parentheses

  • 2-150 JSN = joint space narrowing.