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Table 3 Known-group validity of EQ-5D-5 L and SF-6D

From: A head-to-head comparison of EQ-5D-5 L and SF-6D in Chinese patients with low back pain

 

EQ-5D-5 L

SF-6D

 

Patient characteristics

Mean ± SD

P*

ES

Mean ± SD

P*

ES

RE

Patient types

 Outpatient

0.75 ± 0.21

0.000

0.360

0.64 ± 0.14

0.000

0.230

1.57

 Inpatient

0.35 ± 0.35

0.51 ± 0.1

Gender

 Male

0.62 ± 0.33

0.174

0.010

0.6 ± 0.14

0.279

0.004

1.57

 Female

0.57 ± 0.34

0.58 ± 0.14

Age

 Age < =35

0.71 ± 0.24

0.000

0.110

0.63 ± 0.14

0.000

0.070

1.45

 Age > 35

0.48 ± 0.38

  

0.55 ± 0.14

  

Location

 City

0.6 ± 0.35

0.764

0.000

0.6 ± 0.15

0.584

0.001

0.30

 Village

0.61 ± 0.31

  

0.58 ± 0.14

  

Education

  < =Junior school

0.52 ± 0.36

0.02

0.040

0.56 ± 0.13

0.013

0.030

2.01

 High school

0.58 ± 0.35

0.61 ± 0.15

  > =college

0.68 ± 0.28

0.61 ± 0.14

Income

  < 1000yuan

0.49 ± 0.36

0.000

0.1

0.54 ± 0.13

0.000

0.08

1.19

 1001–3500yuan

0.51 ± 0.37

0.56 ± 0.14

 3501-5000yuan

0.74 ± 0.24

0.66 ± 0.15

  > 5000yuan

0.68 ± 0.29

0.61 ± 0.12

Duration of disease

  

  < 4 Weeks

0.63 ± 0.36

0.247

0.003

0.62 ± 0.15

0.333

0.001

1.27

 4–12 Weeks

0.65 ± 0.33

0.60 ± 0.14

  > 12 Weeks

0.59 ± 0.33

0.58 ± 0.14

Genaral health (EQ-VAS)

 Bad

0.44 ± 0.37

0.000

0.220

0.54 ± 0.14

0.000

0.170

1.29

 Fair

0.65 ± 0.28

0.59 ± 0.11

 Good

0.79 ± 0.19

0.65 ± 0.13

 Excellent

0.76 ± 0.25

0.68 ± 0.14

General health (SF-36)

 Very good¶

0.49

0.000

0.230

0.56

0.000

0.250

0.91

 Good

0.77 ± 0.25

0.73 ± 0.15

 Fair

0.74 ± 0.29

0.64 ± 0.13

 Bad

0.63 ± 0.27

0.58 ± 0.12

 Very bad

0.32 ± 0.38

0.49 ± 0.1

  1. *P is from Mann-Whitney U-tests or Kruskal-Wallis H tests (2-tailed)
  2. ¶ only one person was in this group
  3. EQ-5D-5 L 5-level EuroQol 5-dimension, SF-6D Short Form 6-dimension, SD Standard deviations, ES Effect size, RE Relative efficiency, EQ-VAS EuroQol visual analogue scale, SF-36 36-item Short Form Health Survey