Table 4.

Test retest reliability and agreement of the scale across two administrations at 4-weeks interval (n = 201).

	Intraclass correlation (ICC)				Weighted Kappa statistics
	Coefficient	95% CI		p value	Κ	95% CI		p value
Total score	0.941	0.923	0.956	< 0.001	0.584	0.456	0.714	< 0.001
Regimen-related distress domain	0.938	0.918	0.953	< 0.001	0.689	0.642	0.735	< 0.001
Emotional burden domain	0.930	0.908	0.947	< 0.001	0.691	0.592	0.791	< 0.001
Physician-related distress domain	0.855	0.809	0.890	< 0.001	0.634	0.554	0.713	< 0.001
Interpersonal distress domain	0.874	0.834	0.905	< 0.001	0.592	0.552	0.658	< 0.001

Interclass correlation coefficient and Kappa statistics are generated along with the 95% CI and p value for total score ad for all 4 domains independently.