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Table 4 Median EQ-5D-3L health utility scores stratified by disease severity

From: A comparison of health utility scores calculated using United Kingdom and Canadian preference weights in persons with alzheimer’s disease and their caregivers

  Severity UK-based preference weights (95 % CI) Canadian-based preference weights (95 % CI)
Persons with AD Mild (n = 173) 0.85 (0.85,0.88)a 0.84 (0.84,0.84)a
Moderate (n = 40) 0.81 (0.73,0.88)b 0.82 (0.74,0.84)b
Caregivers Mild (n = 175) 0.81 (0.80,0.85)c 0.83 (0.83,0.83)c
Moderate (n = 41) 0.80 (0.80,0.80)d 0.83 (0.80,0.84)d
  1. Note. AD Alzheimer’s disease, CI confidence interval, UK United Kingdom, Health utility scores were not calculated for three persons with AD who did not answer all of the EQ-5D-3L questions
  2. a p = 0.59 for median difference in persons with AD within mild stratum
  3. b p = 0.98 for median difference in persons with AD within moderate stratum
  4. c p < 0.0001 for median difference in caregivers within mild stratum
  5. d p = 0.009 for median difference in caregivers within moderate stratum