Table 2.

Inter-observer agreement between WB-MRI (including DWI) readers: early response assessment and restaging combined

	Early response assessment + restaging (n = 64)
	Observed agreement (total) (n/n, 95% CI)	Kappa (95% CI)
Response	0.73 (47/64, 0.62–0.83)	0.46 (0.28–0.65)
All nodal sites combined	0.97 (607/640, 0.94–0.98)	0.47 (0.29–0.65)
All extra-nodal sites combined	0.97 (187/192, 0.94–0.99)	0.60 (0.28–0.92)
All sites combined	0.97 (794/832, 0.94–0.98)	0.49 (0.33–0.65)

CI, confidence interval