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Table 3 Internal consistency and reliability of the EORTC QLQ-BR23

From: The european organization for research and treatment of cancer quality of life questionnaire-BR 23 breast cancer-specific quality of life questionnaire: psychometric properties in a Moroccan sample of breast cancer patients

  Cronbach’s α Reliability CCI
Inter-observer Test-retest
Body image 0,76 0,76 0,85
Sexual functioning 0,76 0,5 0,79
Sexual enjoyment - 0,24 0,68
Future perspective - 0,72 0,72
Systemic therapy side effects 0,7 0,87 0,68
Breast symptoms 0,5 0,80 0,79
Arm symptoms 0,63 0,85 0,75
Upset by hair loss - 0,80 0,79