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Table 1 Discriminant validity of the World Health Organization Quality of Life (WHOQOL-100) questionnaire: Domain/facet differences between mentally ill and physically ill participants (Independent samples t- test)

From: Quality of life in mentally ill, physically ill and healthy individuals: The validation of the Greek version of the World Health Organization Quality of Life (WHOQOL-100) questionnaire

WHOQOL-100 domains/facets Mentally ill (n = 124) Physically ill (n = 234) t-test p value
Physical health 59.06 (16.76) 61.44 (17.84) 1.22 0.221
   Pain and discomfort 62.61 (24.80) 55.80 (24.13) -2.51 0.012
   Energy and fatigue 52.06 (20.91) 57.79 (20.10) 2.52 0.012
   Sleep and rest 64.14 (27.17) 62.60 (27.19) -0.510 0.610
   Mobility 67.99 (24.39) 67.40 (22.95) -.226 0.821
   Activities of daily living 55.91 (22.81) 65.37 (20.12) 4.03 0.000
   Dependence on medication 52.85 (26.88) 61.58 (27.95) 2.84 0.005
   Working capacity 57.30 (25.93) 61.86 (24.21) 1.65 0.100
Psychological health 56.66 (18.97) 64.74 (13.21) 4.70 0.000
   Positive feelings 45.66 (20.99) 51.89 (18.14) 2.92 0.004
   Thinking, earning, memory and concentration 58.18 (21.12) 67.84 (15.80) 4.86 0.000
   Self-esteem 58.65 (23.05) 68.46 (16.81) 4.59 0.000
   Bodily image and appearance 65.74 (23.99) 70.76 (21.11) 2.03 0.042
   Negative feelings 46.85 (20.85) 49.66 (22.93) 1.13 0.258
   Spirituality/religion/personal beliefs 58.31 (23.63) 67.73 (16.63) 4.38 0.000
Social relationships 54.05 (17.36) 65.32 (16.85) 5.95 0.000
   Personal relationships 59.61 (20.59) 75.22 (17.42) 0.756 0.000
   Social support 56.50 (22.81) 64.95 (22.37) 3.37 0.001
   Sexual activity 45.93 (23.44) 53.14 (22.42) 2.74 0.006
Environment 59.75 (12.28) 58.76 (13.18) -0.691 0.490
   Physical safety and security 60.70 (18.56) 51.81 (20.08) -4.07 0.000
   Home environment 64.73 (18.19) 66.64 (17.85) 0.951 0.342
   Financial resources 48.88 (25.07) 59.24 (26.32) 3.59 0.000
   Health and social care: availability and quality 62.85 (17.24) 55.98 (18.40) -3.42 0.001
   Opportunities for acquiring new information and skills 56.77 (17.67) 56.01 (15.39) -0.418 0.676
   Participation in and opportunities for recreation/leisure 54.88 (19.85) 53.73 (18.93) -0.538 0.591
   Physical environment 64.51 (18.69) 63.11 (18.99) -0.668 0.505
   Transport 64.11 (22.90) 63.51 (23.75) -0.229 0.819
Overall quality of life and general health 50.00 (22.47) 57.61 (18.26) 3.45 0.001
  1. Values are mean (SD) unless otherwise stated. p < 0.05.
  2. SD = standard deviation.