Table 4.

Comparisons of EQ-5D utility scores by rater (self, carer, spouse, adult child) and dementia severity

	Overall (n = 478)		Spousal caregiving dyads (n = 344)		Adult caregiving dyads (n = 95)
	Utility score mean (SD)	Paired-samples t test	Utility score mean (SD)	Paired-samples t test	Utility score mean (SD)	Paired-samples t test
Overall
Self-ratings	0.75 (0.25)	11.84*	0.75 (0.26)	8.65*	0.74 (0.22)	7.35*
Carer ratings	0.59 (0.28)		0.61 (0.29)		0.51 (0.26)
Mild dementia
Self-ratings	0.79 (0.22)	7.62*	0.79 (0.22)	4.61*	0.79 (0.17)	5.74*
Carer ratings	0.63 (0.27)		0.67 (0.26)		0.53 (0.26)
Moderate dementia
Self-ratings	0.72 (0.23)	5.41*	0.73 (0.22)	4.88*	0.68 (0.27)	1.91
Carer ratings	0.52 (0.27)		0.52 (0.29)		0.50 (0.26)

Note * p < 0.001