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Table 1 Questionnaire descriptive statistics and internal consistency reliability estimates for the prostate and testicular cancer survivor subsamples

From: International evaluation of the psychometrics of health-related quality of life questionnaires for use among long-term survivors of testicular and prostate cancer

  PCa Survivors TCa Survivors
Questionnaire scales N M SD % floor/ ceiling Cronbach’sα N M SD % floor/ ceiling Cronbach’s α
SF-36
 Physical Functioning 112 73 27   0.93 124 92 15 52c 0.91
 Role-Physical 113 61 44 50c 0.91 125 89 26 77c 0.86
 Bodily Pain 116 68 26 26c 0.91 126 85 21 56c 0.93
 General Health 116 64 20   0.77 125 74 21   0.80
 Vitality 114 64 20   0.82 123 66 19   0.82
 Social Functioning 116 79 23 38c 0.86 126 84 22 54c 0.81
 Role-Emotional 112 74 40 67c 0.88 126 90 24 80c 0.68
 Mental Health 113 75 17   0.80 123 79 15   0.83
IOCv2
 Altruism/empathy 115 3.3 0.7   0.77 125 3.5 0.8   0.77
 Health awareness scale 114 3.1 0.9   0.74 125 3.4 0.8   0.71
 Meaning of cancer scalea 112 2.6 0.8   0.85 110 2.8 0.8   0.82
 Positive self-evaluation 115 3.3 0.7   0.64 126 3.5 0.8   0.69
 Positive Impact Score 115 3.1 0.5   0.82 126 3.3 0.6   0.87
 Appearance concerns 114 1.8 0.7 25f 0.73 124 1.9 0.9 33f 0.83
 Body change concerns 115 2.6 1.0   0.81 124 2.2 0.9   0.77
 Life interferences 115 2.1 0.7   0.75 126 1.8 0.8 21f 0.85
 Worry 115 2.4 0.9   0.90 125 2.4 0.9   0.90
 Negative Impact Score 115 2.2 0.7   0.93 126 2.1 0.7   0.94
 Employment concernsb 132 2.7 1.1   0.63 111 2.1 0.9 23f 0.74
 Relationship/not partnered concerns 25 2.3 0.9   0.82 24 2.2 1.1 25f 0.85
 Relationship/partnered concerns 92 1.8 0.6 22f 0.52 102 1.5 0.6 39f 0.62
QLQ-C30
 Global health status/QoL 112 69 20   0.96 124 79 19 22c 0.92
 Physical Function 113 84 18 30c 0.83 126 95 12 68c 0.82
 Role Function 114 85 24 61c 0.90 126 94 17 84c 0.93
 Emotional Function 113 85 18 40c 0.84 124 86 17 39c 0.84
 Cognitive Function 114 83 21 44c 0.73 124 91 16 66c 0.61
 Social Function 114 88 20 61c 0.78 124 94 16 82c 0.86
 Fatigue 114 22 21 28f 0.84 126 21 21 33f 0.85
 Nausea/vomitingc 114 1 5 91f −0.04 126 2 6 87f
 Pain 114 18 25 53f 0.89 126 12 20 63f 0.85
 Dyspnoead 114 15 22 63f 125 9 18 75f
 Insomniad 113 18 29 65f 126 13 22 68f
 Appetite lossd 113 5 17 91f 126 4 14 89f
 Constipationd 114 11 21 75f 120 5 14 87f
 Diarrhoead 113 7 18 83f 124 6 17 85f
 Financial problemsd 114 5 18 90f 123 8 21 86f
QLQ-PR25
 Sexual activity 112 26 25 32 f 0.67
 Sexual functioning 43 51 20   0.41
 Urinary problems 115 22 20   0.89
 Incontinence aid problemsd 49 29 34 49 f
 Bowel problems 108 8 14 52 f 0.79
 Treatment related symptoms 112 13 12   0.45
QLQ-TC26
 Satisfaction with care 111 80 28 52c 0.85
 Future perspective 125 77 24 36c 0.56
 Communication 125 76 25 34c 0.53
 Sexual activity 121 60 27   0.77
 Sexual enjoyment 116 76 25 38c 0.77
 Satisfaction with testicular implantd 35 55 37 31c
 Treatment side effects 125 11 12 28f 0.63
 Job problems 125 15 26 66f 0.82
 Sexual problems 115 13 22 65f 0.59
 Family problemsd 125 15 28 70f
 Infertilityd 123 24 34 58f
 Body Imaged 125 18 28 62f
QPSNordic
 Work Motivation 113 3.8 0.7   0.42
 Job and life satisfaction 113 3.9 0.8   0.71
 Work ability 113 3.8 0.8   0.82
 Self-efficacy 113 4.4 0.8 40c 0.83
  1. Scale range for the SF-36, QLQ-C30, QLQ-PR25 and QLQ-TC26 is from 0 to 100. The IOCv2 and QPS Nordic scale range from 1 to 5. For the function scales and global health scale of the EORTC-QLQC30 and its modules a higher score represents a better level of functioning. For the symptom oriented scales and items higher scores indicate a higher level of symptoms; Percentage floor or ceiling effects are only reported when they exceed 20%.; TCa testicular cancer survivors, PCa prostate cancer survivors, N number of participants, M mean, SD standard deviation, c ceiling, f floor
  2. aDue to a mistake in the Norwegian version of the IOCv2 14 respondents skipped more than half of the items of this scale
  3. bN is higher than the number of respondents who were actually employed, since the item was also completed by some participants who were retired
  4. cReliability of the NV scale could not be calculated do to the very low prevalence of nausea and the absence of vomiting in the TCa sample
  5. dSingle item scales