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Table 2 The average 15D scores and dimension level values between patients and population controls

From: Health-related quality of life in patients waiting for major joint replacement. A comparison between patients and population controls

Health outcome Patients Population controls Mean difference b (95% CI)
15D dimension a    
   Moving 0.565 (0.127) 0.883 (0.172) 0.317*** (0.281, 0.354)
   Seeing 0.909 (0.176) 0.943 (0.140) 0.034ns (-0.004, 0.073)
   Hearing 0.914 (0.142) 0.941 (0.143) 0.027ns (-0.007, 0.062)
   Breathing 0.866 (0.204) 0.867 (0.219) 0.001ns (-0.050, 0.052)
   Sleeping 0.685 (0.224) 0.803 (0.186) 0.117*** (0.068, 0.167)
   Eating 0.992 (0.053) 0.992 (0.053) 0.000ns (-0.013, 0.013)
   Speech 0.989 (0.057) 0.978 (0.079) -0.011ns (-0.028, 0.005)
   Elimination 0.848 (0.202) 0.876 (0.193) 0.028ns (-0.020, 0.076)
   Usual activities 0.655 (0.217) 0.870 (0.199) 0.214*** (0.164, 0.264)
   Mental function 0.864 (0.178) 0.897 (0.170) 0.033ns (-0.009, 0.075)
   Discomfort and symptoms 0.473 (0.236) 0.784 (0.204) 0.311*** (0.258, 0.364)
   Depression 0.829 (0.177) 0.902 (0.138) 0.074*** (0.035, 0.112)
   Distress 0.831 (0.188) 0.892 (0.155) 0.061** (0.019, 0.102)
   Vitality 0.748 (0.172) 0.852 (0.152) 0.104*** (0.065, 0.143)
   Sexual activity 0.731 (0.273) 0.869 (0.239) 0.138*** (0.076, 0.200)
15D score 0.778 (0.091) 0.883 (0.103) 0.105*** (0.082, 0.129)
  1. n = 133
  2. a Data are mean (SD) scores. The scale is 0–1, worst to best.
  3. b Baseline scores between patients and population controls. Positive difference indicates better score and negative difference indicates worse score for population controls than for patients. ns, non-significance
  4. * P < 0.05, ** P < 0.01, *** P < 0.001