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Table 2 Descriptive analyses of the EORT QLQ–C30 items and reliability analysis

From: Influence of pain severity on the quality of life in patients with head and neck cancer before antineoplastic therapy

QLQ-C30 Mean(SD) Cronbach’s α
Global quality of life/QoL 65.8 (27.1) 0.81
Functional scales   
Physical functioning 80.2 (23.3) 0.73
Role functioning 80.7 (32.3) 0.78
Emotional functioning 64.5 (33.5) 0.85
Cognitive functioning 82.1 (25.0) 0.31
Social functioning 89.8 (23.7) 0.70
Symptom scales   
Fatigue 21.7 (28.3) 0.75
Nausea and vomiting 5.5 (15.7) 0.67
Pain 36.1 (38.1) 0.89
Dyspnea 9.1 (23.6) -
Insomnia 36.7 (42.7) -
Appetite loss 31.4 (40.3) -
Constipation 23.8 (38.9) -
Diarrhea 2.1 (11.6) -
Financial difficulties 30.7 (42.9) -