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Table 5 Severity levels, standard errors, and goodness-of-fit indices of the QLACS Generic and cancer-specific scales, and the benefits of cancer and the sexual problems scales using Rasch analysis

From: Cross-cultural adaptation, reliability and validity of the Spanish version of the Quality of Life in Adult Cancer Survivors (QLACS) questionnaire: application in a sample of short-term survivors

Items Item description δ (logit) SE Infit MNSQ Outfit MNSQ
Generic scale     
Item 1a You had the energy to do the things you wanted to do −0.16 0.03 1.23 1.28
Item 2 You had difficulty doing activities that require concentrating 0.38 0.04 0.77 0.84
Item 3 You were bothered by having a short attention span 0.27 0.04 1.20 1.12
Item 4 You had trouble remembering things −0.04 0.03 1.16 1.22
Item 5 You felt fatigued −0.19 0.03 0.83 0.85
Item 6 You felt happy −0.40 0.03 1.25 1.33
Item 7 You felt blue or depressed −0.09 0.03 0.87 0.94
Item 8 You enjoyed life −0.38 0.03 1.30 1.32
Item 9 You worried about little things −0.16 0.03 1.04 1.23
Item 10 You were bothered by being unable to function sexually Removed   
Item 11 You didn’t have energy to do the things you wanted to do −0.07 0.03 0.82 0.81
Item 12 You were dissatisfied with your sex life Removed   
Item 13 You were bothered by pain that kept you from doing the things you wanted to do −0.02 0.03 1.10 1.06
Item 14 You felt tired a lot −0.33 0.03 0.71 0.72
Item 15 You were reluctant to start new relationships Removed   
Item 16 You lacked interest in sex Removed   
Item 17 Your mood was disrupted by pain or its treatment 0.07 0.04 1.05 0.99
Item 18 You avoided social gatherings 0.32 0.04 1.26 1.17
Item 19 You were bothered by mood swings −0.15 0.03 0.80 0.86
Item 20 You avoided your friends 0.72 0.04 1.08 1.20
Item 21 You had aches or pains −0.04 0.03 1.03 1.05
Item 22 You had a positive outlook on life Removed   
Item 23 You were bothered by forgetting what you stated to do 0.24 0.04 0.89 1.10
Item 24 You felt anxious −0.26 0.03 0.86 0.96
Item 25 You were reluctant to meet new people Removed   
Item 26 You avoided sexual activity Removed   
Item 27 Pain or its treatment interfered with your social activities 0.30 0.04 1.10 1.09
Item 28 You were content with your life Removed   
Cancer-specific scale     
Item 30 You had financial problems because of the cost of cancer surgery or treatment Removed   
Item 31 You worried that your family members were at risk of getting cancer −0.46 0.04 1.04 1.01
Item 33 You were self-conscious about the way you look because of your cancer or its treatment 0.40 0.04 1.18 1.10
Item 34 You worried about whether your family members might have cancer-causing genes −0.49 0.04 0.94 0.90
Item 35 You felt unattractive because of your cancer or its treatment 0.47 0.04 0.98 0.95
Item 36 You worried about dying from cancer −0.14 0.04 1.02 1.02
Item 37 You had problems with insurance because of cancer Removed   
Item 38 You were bothered by hair loss from cancer treatment 0.59 0.04 1.28 1.23
Item 39 You worried about cancer coming back −0.55 0.04 0.81 0.83
Item 42 You worried about whether your family members should have genetic tests for cancer −0.22 0.04 1.26 1.17
Item 43 You had money problems that arose because you had cancer Removed   
Item 44 You felt people treated you differently because of changes to your appearance due to your cancer or its treatment 0.81 0.04 1.24 1.17
Item 45 You had financial problems due to a loss of income as a result of cancer Removed   
Item 46 Whenever you felt a pain, you worried that it might be cancer again −0.14 0.03 0.85 0.95
Item 47 You were preoccupied with concerns about cancer −0.24 0.03 0.81 0.87
Benefits of cancer scale     
Item 29 You appreciated life more because of having had cancer −0.38 0.03 1.15 1.15
Item 32 You realized that having had cancer helps you cope better with problems now 0.04 0.03 0.84 0.85
Item 40 You felt that cancer helped you to recognize what is important in life −0.45 0.03 0.77 0.73
Item 41 You felt better able to deal with stress because of having had cancer 0.79 0.03 1.29 1.28
Sexual problems scale     
Item 10 You were bothered by being unable to function sexually 0.10 0.03 1.12 1.07
Item 12 You were dissatisfied with your sex life 0.01 0.03 0.94 0.89
Item 16 You lacked interest in sex −0.09 0.03 0.98 0.90
Item 26 You avoided sexual activity −0.02 0.03 0.98 0.89
  1. aReverse item
  2. δ = level of severity (higher values indicate higher severity)
  3. SE standard error, MNSQ mean square fit statistic
  4. Item separation index of each model: 7.70 for the Generic scale, 11.89 for the cancer-specific scale, 14.27 for the benefits of cancer scale, and 2 for the sexual problems scale