Table 4. Agreement by MDT classification across raters and the actual MDT vignette classification.

MDT classification	Raw agreement (%)	Kappa	SE
Derangement	93	0.88	0.030
Articular dysfunction	96	0.87	0.030
Contractile dysfunction	97	0.93	0.030
Spinal	96	0.96	0.030
Other	93	0.77	0.030
Overall agreement	95	0.89	0.015

MDT: Mechanical Diagnosis and Therapy; SE: standard error.