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Table 5 Explanatory power of multivariable models for the EQ VAS that include EQ-5D-5L domains with and without an extra fatigue item added

From: Adding a fatigue item to the EQ-5D-5L improves its psychometric performance in the general population

Selection of EQ-5D-5L + Fatigue items

R2

df

F-value

p-value

Total sample

MO + SC + UA + PD + AD

0.387

20

94.8

 < 0.001

SC + UA + PD + AD + FA

0.410

20

104.3

 < 0.001

MO + UA + PD + AD + FA

0.413

20

105.7

 < 0.001

MO + SC + PD + AD + FA

0.406

20

102.8

 < 0.001

MO + SC + UA + AD + FA

0.390

20

96.2

 < 0.001

MO + SC + UA + PD + FA

0.397

20

98.8

 < 0.001

MO + SC + UA + PD + AD + FA

0.416

24

89.0

 < 0.001

Without chronic health condition

MO + SC + UA + PD + AD

0.156

19

14.0

 < 0.001

SC + UA + PD + AD + FA

0.167

18

16.0

 < 0.001

MO + UA + PD + AD + FA

0.175

20

15.2

 < 0.001

MO + SC + PD + AD + FA

0.161

19

14.4

 < 0.001

MO + SC + UA + AD + FA

0.147

19

14.2

 < 0.001

MO + SC + UA + PD + FA

0.149

19

13.2

 < 0.001

MO + SC + UA + PD + AD + FA

0.175

23

13.2

 < 0.001

With chronic health condition

MO + SC + UA + PD + AD

0.355

20

42.8

 < 0.001

SC + UA + PD + AD + FA

0.382

19

50.7

 < 0.001

MO + UA + PD + AD + FA

0.392

20

50.0

 < 0.001

MO + SC + PD + AD + FA

0.385

20

48.7

 < 0.001

MO + SC + UA + AD + FA

0.368

20

45.2

 < 0.001

MO + SC + UA + PD + FA

0.378

20

47.1

 < 0.001

MO + SC + UA + PD + AD + FA

0.396

24

42.3

 < 0.001

  1. MO, mobility; SC, self-care; UA, Usual activities; PD, Pain/discomfort; AD, Anxiety/depression; FA, Fatigue