Skip to main content

Table 3 Comparison of baseline observed and predicted utility scores

From: Exploring the validity of estimating EQ-5D and SF-6D utility values from the health assessment questionnaire in patients with inflammatory arthritis

   Observed Predicted Difference
(Observed-Predicted)
  n Mean
(SD)
Mean
(SD)
R 2 Mean
(95% CI)
95% reference range
EQ-5D       
STIVEA 224 0.47
(0.30)
0.53
(0.25)
0.35 0.06
(0.02, 0.09)
-0.44 to 0.56
BROSG 453 0.59
(0.22)
0.59
(0.19)
0.20 0.01
(-0.01, 0.03)
-0.42 to 0.44
BSRBR 795 0.40
(0.33)
0.44
(0.26)
0.35 0.04
(0.02, 0.06)
-0.49 to 0.57
SF-6D       
STIVEA 224 0.57
(0.13)
0.67
(0.07)
0.45 0.10
(0.09, 0.11)
-0.09 to 0.29
BROSG 453 0.63
(0.13)
0.68
(0.07)
0.34 0.05
(0.04, 0.05)
-0.16 to 0.25
BSRBR 795 0.53
(0.11)
0.63
(0.07)
0.51 0.09
(0.09, 0.10)
-0.06 to 0.25
  1. Abbreviations: BROSG = British Rheumatoid Outcome Study Group, BSRBR = British Society for Rheumatology Biologics Register, EQ-5D = EuroQol-5D, SF-6D = Short Form-6D, STIVEA = Steroids In Very Early Arthritis