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Table 2 Reliability of EORTC QLQ-C30 and QLQ-BR23 Amharic version in women with breast cancer in Ethiopia (n = 146)

From: Reliability and validity of Amharic version of EORTC QLQ-C30 and QLQ-BR23 modules for assessing health-related quality of life among breast cancer patients in Ethiopia

EORTCScalesCronbach’s α valuea
QLQ-C30Global Health status/QoL0.789
Physical functioning0.771
Role functioning0.908
Emotional functioning0.817
Cognitive functioning0.516
Social functioning0.779
Nausea and vomiting0.857
DyspneaSingle item
InsomniaSingle item
Appetite lossSingle item
ConstipationSingle item
DiarrheaSingle item
Financial difficultiesSingle item
QLQ-BR23Body image0.510
Sexual functioning0.962
Systemic therapy side effects0.755
Breast symptoms0.773
Arm symptoms0.749
Sexual enjoymentSingle item
Future perspectiveSingle item
Upset by hair lossSingle item
  1. aFor single items, reliability test is not applicable. EORTC QLQ-C30 and QLQ-BR23 = European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (QLQ-C30) and Breast Cancer specific (QLQ-BR23) questionnaire. QoL = Quality of Life