Table IV.

Results of the EORTC QLQ-C30 and EORTC QLQ-L13 questionnaires

The questionnaire consists of questions that were divided into four categories: Symptoms Scale, Functional Scale, Global Quality of Life and the EORTC LC13 supplement, which is the 13-item lung cancer-specific questionnaire module. A high score for Symptom Scale represents a high level of symptomatology. A high Global Health Status and Functional Scale represent a high quality of life and high level of functioning. The LC13 supplement assesses the intensity of typical lung cancer symptoms.

Variable	Test-retest reliability (follow-up group, n = 62)
QLQ-C30:  Physical functioning  Role functioning  Emotional functioning  Cognitive functioning  Social functioning  Global Quality of Life  Pain  Nausea and vomiting  Fatigue  Dyspnoea  Insomnia  Appetite loss  Constipation  Diarrhoea  Financial difficulties	58.2 65.9 59.5 76.3 65.9 50.8 32.8 9.1 51.6 54.3 41.7 20.4 27.4 7 38.8
QLQ-C13:  Dyspnoea  Coughing  Haemoptysis  Sore mouth  Dysphagia  Peripheral neuropathy  Alopecia  Pain in chest  Pain in arm or shoulder  Pain in other parts	48.1 36.6 2.2 6.6 14.5 36.1 18.6 36.6 37.2 29.8