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Table 5 Distribution of the QUALIDEM subscales for people with mild to severe and very severe dementia

From: Scalability and internal consistency of the German version of the dementia-specific quality of life instrument QUALIDEM in nursing homes – a secondary data analysis

Subscales, 0-100 a    N No. of Items Mean (SD) Percentiles
       10% 25% 50% 75% 90%
A Care relationship          
  Mild to severe   378   75.1 (± 21.4) 43 62 81 95 100
  Age, years ≤ 80 77 7 74.7 (± 22.3) 38 62 81 93 100
   81 – 90 205   75.4 (± 20.4) 48 62 81 90 100
   > 90 96   74.7 (± 22.8) 41 57 81 95 100
  Gender Female 297   75.9 (± 21.0) 47 62 81 95 100
   Male 81   71.8 (± 22.4) 35 57 76 90 100
  Very severe   256   75.2 (± 23.3) 44 56 78 100 100
  Age, years ≤ 80 69   68.9 (± 25.5) 33 56 67 89 100
   81 – 90 129 3 76.6 (± 22.8) 44 56 78 100 100
   > 90 58   79.7 (± 20.2) 54 67 78 100 100
  Gender Female 199   76.5 (± 22.7) 44 67 78 100 100
   Male 57   70.6 (± 24.8) 33 56 67 94 100
B. Positive Affect          
  Mild to severe   378   73.1 (± 23.5) 39 56 75 94 100
  Age, years ≤ 80 77   70.3 (± 24.5) 33 53 72 94 100
   81 – 90 205 6 74.7 (± 23.2) 39 61 78 97 100
   > 90 96   72.0 (± 23.2) 39 56 75 94 100
  Gender Female 297   74.7 (± 22.6) 29 44 72 89 100
   Male 81   67.4 (± 25.7) 39 61 78 94 100
  Very severe   256   64.2 (± 27.5) 25 50 67 90 100
  Age, years ≤ 80 69   62.7 (± 28.9) 25 42 67 92 100
   81 – 90 129 4 63.7 (± 27.2) 17 50 67 83 100
   > 90 58   67.2 (± 26.7) 25 50 75 92 100
  Gender Female 199   65.1 (± 27.0) 25 50 67 92 100
   Male 57   61.3 (± 29.3) 17 38 67 88 100
C. Negative Affect          
  Mild to severe   378   71.4 (± 23.5) 44 56 78 89 100
  Age, years ≤ 80 77   72.2 (± 24.4) 33 56 78 89 100
   81 – 90 205 3 70.7 (± 23.7) 44 56 78 89 100
   > 90 96   72.3 (± 22.7) 44 56 78 89 100
  Gender Female 297   69.1 (± 24.3) 33 56 67 89 100
   Male 81   80.0 (± 18.0) 56 67 89 89 100
  Very severeb   256   69.4 (± 27.7) 33 50 67 100 100
  Age, years ≤ 80 69   67.6 (± 29.4) 17 50 83 100 100
   81 – 90 129 2 68.0 (± 27.5) 17 50 67 100 100
   > 90 58   74.7 (± 25.8) 33 50 83 100 100
  Gender Female 199   66.8 (± 28.0) 17 50 67 100 100
   Male 57   78.4 (± 24.8) 33 67 83 100 100
D. Restless tense behavior          
  Mild to severe   378   66.6 (± 29.4) 22 44 67 89 100
  Age, years ≤ 80 77   66.5 (± 33.3) 11 33 78 100 100
   81 – 90 205 3 66.6 (± 29.0) 22 44 67 89 100
   > 90 96   66.9 (± 27.0) 33 44 67 89 100
  Gender Female 297   66.6 (± 29.6) 22 44 67 89 100
   Male 81   66.8 (± 28.8) 22 44 78 89 100
  Very severe   256   55.9 (± 29.4) 11 33 56 78 100
  Age, years ≤ 80 69   49.4 (± 30.7) 0 22 56 67 100
   81 – 90 129 3 56.8 (± 29.3) 11 33 56 78 100
   > 90 58   61.7 (± 27.2) 22 33 67 81 100
  Gender Female 199   57.4 (± 29.3) 11 33 56 78 100
   Male 57   50.9 (± 29.5) 11 22 56 78 89
E. Positive self-image          
  Mild to severe   378   77.6 (± 25.7) 44 67 89 100 100
  Age, years ≤ 80 77   78.5 (± 25.6) 33 67 89 100 100
   81 – 90 205 3 76.9 (± 26.1) 40 67 89 100 100
   > 90 96   78.6 (± 25.1) 44 67 89 100 100
  Gender Female 297   77.0 (± 25.9) 44 67 89 100 100
   Male 81   80.0 (± 24.8) 33 67 89 100 100
F. Social relations          
  Mild to severe   378   64.7 (± 21.4) 33 50 67 83 89
  Age, years ≤ 80 77   63.6 (± 24.5) 32 44 67 83 94
   81 – 90 205 6 66.2 (± 20.5) 39 50 67 83 94
   > 90 96   62.3 (± 20.7) 33 44 67 78 89
  Gender Female 297   66.6 (± 20.5) 39 50 67 83 94
   Male 81   57.4 (± 23.3) 23 44 61 75 89
  Very severeb   256   66.3 (± 25.7) 22 47 67 89 100
  Age, years ≤ 80 69   64.9 (± 25.6) 22 44 67 89 100
   81 – 90 129 3 64.9 (± 26.3) 22 56 67 89 100
   > 90 58   70.9 (± 24.3) 33 56 78 89 100
  Gender Female 199   67.2 (± 24.8) 33 56 67 89 100
   Male 57   63.2 (± 28.6) 22 44 67 89 100
G. Social isolation          
  Mild to severeb   378   73.7 (± 25.0) 33 56 78 100 100
  Age, years ≤ 80 77   79.2 (± 22.8) 44 61 89 100 100
   81 – 90 205 3 72.2 (± 25.5) 33 56 78 100 100
   > 90 96   72.2 (± 24.9) 33 56 78 89 100
  Gender Female 297   73.4 (± 25.5) 33 56 78 100 100
   Male 81   74.5 (± 22.7) 44 56 78 100 100
  Very severeb   256   75.4 (± 23.3) 41 67 78 100 100
  Age, years ≤ 80 69   71.5 (± 24.1) 33 56 67 100 100
   81 – 90 129 3 77.9 (± 22.5) 44 67 78 100 100
   > 90 58   74.5 (± 23.7) 33 67 78 100 100
  Gender Female 199   74.9 (± 23.4) 44 67 78 100 100
   Male 57   77.2 (± 23.1) 33 61 89 100 100
H. Feeling at home          
  Mild to severe   378   78.0 (± 21.6) 42 67 83 100 100
  Age, years ≤ 80 77   78.0 (± 22.7) 42 67 83 100 100
   81 – 90 205 4 76.5 (± 22.2) 42 67 83 92 100
   > 90 96   81.2 (± 19.2) 50 67 92 100 100
  Gender Female 297   79.0 (± 21.1) 50 67 83 100 100
   Male 81   74.5 (± 22.7) 42 58 75 92 100
I Having something to do          
  Mild to severeb   378   40.4 (± 29.5) 0 17 50 50 83
  Age, years ≤ 80 77   44.2 (± 31.3) 0 17 50 67 100
   81 – 90 205 2 40.8 (± 29.3) 33 56 72 89 100
   > 90 96   36.6 (± 28.2) 33 56 78 100 100
  Gender Female 297   42.5 (± 29.9) 0 17 50 67 83
   Male 81   32.9 (± 26.6) 0 0 33 50 67
  1. aSubscale sum scores were transformed to values between 0 and 100 using the formula: QUALIDEM(%) = QUALIDEM(Sumscore)*100/3*N(number of items for each subscale). Higher scores indicate a higher Qol.
  2. bNot scalable and unreliable subscale.