Comparing the psychometric properties of EQ-5D-3L and EQ-5D-5L proxy ratings by informal caregivers and a health professional for people with dementia

Table 4 Inconsistency between the 3L and 5L and Shannon (H') and Shannon Evenness index (J')

	Assessments	Inconsistency		Shannon values 3L		Shannon values 5L
	(n)	Inconsistency response pairs (n, %)	Average size of inconsistency (n, %)	H’	J’	H’	J’
Caregiver proxy-rating
Mobility	106	4 (3.8%)	1.13	0.71	0.64	1.43	0.89
Self-care	106	3 (2.8%)	1.09	1.06	0.95	1.57	0.98
Usual activities	106	0 (0%)	1.00	1.08	0.98	1.56	0.96
Pain/discomfort	106	5 (4.7%)	1.17	0.94	0.85	1.56	0.96
Anxiety/depression	106	2 (1.9%)	1.07	0.91	0.82	1.39	0.87
Total/mean	–	14 (2.6%)	1.09	0.94	0.85	1.50	0.91
Care manager proxy-rating
Mobility	133	1 (0.8%)	1.03	0.69	0.63	1.39	0.86
Self-care	133	4 (3.0%)	1.06	0.98	0.89	1.57	0.97
Usual activities	133	3 (2.3%)	1.07	0.86	0.78	1.42	0.89
Pain/discomfort	133	3 (2.3%)	1.09	0.73	0.67	1.23	0.76
Anxiety/depression	133	2 (1.5%)	1.07	0.94	0.86	1.38	0.86
Total/mean	–	13 (2.0%)	1.06	0.89	0.77	1.40	0.868

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