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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