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Table 7 Responsiveness of EQ VAS, EQ-5D index UK and EQ-5D index D based on SF-36 transition question as an external anchor of change

From: Validity and responsiveness of the EQ-5D in assessing and valuing health status in patients with somatoform disorders

 

Statistics

Score

Change of health state anchored by SF-36 transition question

Worse (n=64)

Same (n=72)

Better (n=91)

t0 – t2

Mean difference (SD)

EQ VAS

−3.386 (19.714)

−3.284 (17.420)

10.744** (16.755)

EQ-5D index UK

−0.065 (0.285)

0.029 (0.249)

0.076** (0.199)

EQ-5D index D

−0.069 (0.266)

0.018 (0.229)

0.046* (0.181)

Effect size

EQ VAS

−0.17

−0.14

0.62

EQ-5D index UK

−0.18

0.11

0.39

EQ-5D index D

−0.22

0.08

0.26

Standardised response mean

EQ VAS

−0.16

−0.15

0.65

 

EQ-5D index UK

−0.20

0.12

0.38

  

EQ-5D index D

−0.23

0.07

0.25

  1. Significant t-statistics (*p < 0.05; **p < 0.001) are printed bold.