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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)  
  1. 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
  2. (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
  3. (b)Hypothesised positive relationships between dimension and utilities/summary scores. Underlined correlations show all correlations ≤ |0.02|