An empirical comparison of the OPQoL-Brief, EQ-5D-3 L and ASCOT in a community dwelling population of older people

Kaambwa, Billingsley; Gill, Liz; McCaffrey, Nicola; Lancsar, Emily; Cameron, Ian D.; Crotty, Maria; Gray, Len; Ratcliffe, Julie

doi:10.1186/s12955-015-0357-7

Table 2 Correlation between quality of life instrument dimensions and between quality of life instrument dimensions and utilities/summary scores

From: An empirical comparison of the OPQoL-Brief, EQ-5D-3 L and ASCOT in a community dwelling population of older people

	EQ-5D-3 L dimensions						ASCOT dimensions
	Mobility	Self-care	Usual Activities	Pain/discomfort	Anxiety/depression	EQ-5D-3 L utility score	Control over daily life	Keeping clean presentable	Food and drink	How safe you feel	Social contact	Occupation/spend time	How clean and comfortable home is	How receiving help makes you feel	ASCOT utility score
OPQoL-Brief Dimensions
Enjoy life overall	−0.24	−0.18	−0.18	−0.35	−0.18^(a)	0.41^(b)	0.46^(b)	0.01	0.23^(b)	0.12^(b)	0.57^(b)	0.40^(b)	0.25	0.24	0.52^(b)
Look forward to things	−0.17	−0.09	−0.26	−0.17	−0.23^(a)	0.31^(b)	0.25^(b)	0.05	0.17	0.04	0.47^(b)	0.29^(b)	0.20	0.27	0.38^(b)
Healthy to get out/about	−0.45^(a)	−0.34	−0.43^(a)	−0.25	−0.08	0.44^(b)	0.21^(b)	0.09	0.26	0.25	0.43	0.34	0.16	0.29	0.46^(b)
Family/friends help if needed	−0.20	−0.10	−0.25	−0.26	−0.09	0.40^(b)	0.36	0.21	0.23	0.07	0.46^(b)	0.32^(b)	0.09	0.33^(b)	0.45^(b)
Healthy enough to be independent	−0.30^(a)	−0.34^(a)	−0.37^(a)	−0.21	−0.20	0.41^(b)	0.19^(b)	0.22	0.22	0.24	0.40	0.42^(b)	0.12	0.05	0.40^(b)
Can please myself in what I do	−0.25	−0.30^(a)	−0.25	−0.13	−0.22^(a)	0.35^(b)	0.28^(b)	0.15	0.06	0.08	0.29	0.27^(b)	0.13	0.12	0.30^(b)
Feel safe where I live	−0.19	−0.13	−0.39	−0.43	−0.03^(a)	0.44^(b)	0.37	0.25	0.22	0.36^(b)	0.27	0.27	0.19	0.19	0.47^(b)
Get pleasure from home	−0.15	−0.01	−0.15	−0.27	−0.13	0.26^(b)	0.35	−0.04	0.13	0.01	0.36	0.22	0.26^(b)	0.35	0.37^(b)
Take life as it comes	−0.03	−0.15	−0.08	−0.16	−0.33^(a)	0.25^(b)	0.14	0.11	0.17	0.22	0.23	0.31	0.13	0.07	0.30^(b)
Feel lucky compared to others	−0.23	−0.27	−0.12	−0.20	0.01^(a)	0.25^(b)	0.25	0.09	0.12	0.09	0.37	0.21	0.29	0.04	0.30^(b)
Enough money for household bills	−0.34	−0.27	−0.23	−0.24	−0.01 ^(a)	0.44^(b)	0.25^(b)	0.17	0.26^(b)	0.17	0.21	0.15	0.24	0.33	0.38^(b)
Have social/leisure activities I enjoy doing	−0.12	−0.19	−0.02 ^(a)	−0.14	−0.27	0.23^(b)	0.22	−0.10	0.18	0.04	0.36^(b)	0.23	0.16	0.26	0.32^(b)
Try to stay involved with things	−0.15	−0.19	−0.06^(a)	−0.05	−0.19	0.23^(b)	0.04	0.00	0.23	0.17	0.24	0.10^(b)	0.16	0.01	0.21^(b)
OPQoL-Brief summary score	−0.35^(a)	−0.32^(a)	−0.34^(a)	−0.33^(a)	−0.24^(a)	0.53^(b)	0.40^(b)	0.15^(b)	0.30^(b)	0.22^(b)	0.56^(b)	0.43^(b)	0.28^(b)	0.30^(b)	0.58^(b)
EQ-5D-3 L Dimensions
Mobility							−0.20	−0.11	−0.12	−0.19	−0.16	−0.06	−0.04	−0.09	−0.22^(a)
Self-care							−0.06^(a)	−0.27^(a)	0.03	−0.35	−0.09	−0.08	−0.05^(a)	−0.12	−0.21^(a)
Usual activities							−0.17^(a)	−0.23	−0.08	−0.21	−0.12^(a)	−0.13^(a)	0.02	−0.15	−0.23^(a)
Pain/Discomfort							−0.33	−0.09	−0.13	−0.15	−0.22	−0.37	−0.26	−0.12	−0.37^(a)
Anxiety/Depression							−0.08^(a)	0.03	−0.13	−0.01 ^(a)	−0.19	−0.10	0.04	0.00	−0.11^(a)
EQ-5D-3 L Utility score
							0.20^(b)	0.17^(b)	0.32^(b)	0.32^(b)	0.33^(b)	0.26^(b)	0.27^(b)	0.50^(b)

OPQoL-Brief Older People’s Quality of Life brief questionnaire, EQ-5D-3 L EuroQoL EQ-5D 3 Level instrument, ASCOT Adult Social Care Outcomes Toolkit instrument
^(a)Hypothesised negative relationships between dimension and utilities/summary scores. Note that dimension scores for the EQ-5D-3 L are ‘reverse-scored’ so that a higher (lower) score implies lower (higher) quality of life
^(b)Hypothesised positive relationships between dimension and utilities/summary scores. Underlined correlations show all correlations ≤ |0.02|

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