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Table 4 Descriptive statistics of EQ-5D-5L utility score and EQ-VAS at baseline and follow-up

From: Responsiveness of the EuroQoL 5-Dimension (EQ-5D) questionnaire in patients with spondyloarthritis

  Mean Standard deviation Observed range Theoretical range Floor (%) Ceiling (%)
EQ-5D-5L
 Baseline 0.798 0.170 0.280 to 1.000 − 0.391 to 1.000 0.0 6.2
 Baselinea 0.798 0.162 0.310 to 1.000 − 0.391 to 1.000 0.0 5.1
 Follow-up 0.794 0.185 -0.110 to 1.000 − 0.391 to 1.000 0.0 13.3
 Mean change -0.004 0.114 -0.390 to 0.410    
EQ-VAS
 Baseline 64.88 17.21 10 to 97 0 to 100 0.0 0.0
 Baselinea 65.73 16.68 15 to 97 0 to 100 0.0 0.0
 Follow-up 64.26 18.07 5 to 95 0 to 100 0.0 0.0
 Mean change -0.63 20.11 -60 to 50    
  1. aBaseline descriptive statistics of respondents who have completed both baseline and follow-up
  2. EQ-5D-5L EuroQol 5-dimension 5-level; EQ-VAS EuroQol visual analogue scale