Table 4.

Inter-rater ICC values for the erythema measures of the DSM II Colormeter for scar tissue and normal skin.

Measure	Scar tissue		Normal skin
	a*	Erythema	a*	Erythema
Mean	16.12	15.02	13.28	10.30
IQR	14.03–18.02	12.84–17.44	10.79–15.10	7.26–13.20
%CV (patient)	19.0	21.6	24.30	32.0
Inter-rater ICC
Single ICC (95% CI)	0.718 (0.601–0.813)	0.777 (0.678–0.854)	0.595 (0.424–0.732)	0.647 (0.488–0.769)
Average ICC (95% CI)	0.884 (0.819–0.929)	0.912 (0.863–0.946)	0.815 (0.689–0.891)	0.846 (0.741–0.909)
%CV (SEM)	9.65 (0.83)	9.45(0.73)	13.77 (1.09)	14.5 (0.90)
Intra-rater ICC
Single ICC (95% CI)	0.731 (0.233–0.949)	0.737 (0.260–0.938)	0.792 (0.352–0.970)	0.792 (0.283–0.985)
Average ICC (95% CI)	0.87 (0.477–0.983)	0.87 (0.477–0.978)	0.90 (0.620–0.990)	0.89 (0.542–0.995)
%CV (SEM)	9.83 (0.87)	10.03 (0.84)	9.43 (0.76)	8.93 (0.58)
Agreement and consistency
ICC agreement (95% CI)	0.571 (0.457–0.685)	0.622 (0.517–0.728)	0.474 (0.343–0.604)	0.510 (0.386–0.634)
ICC consistency (95% CI)	0.649 (0.546–0.753)	0.677 (0.580–0.773)	0.623 (0.507–0.739)	0.627 (0.516–0.738)