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The EORTC QLQ-C15-PAL questionnaire: validation study for Spanish bone metastases patients
Juan Ignacio Arraras1, Fernando Arias de la Vega, Gemma Asin
1Radiotherapeutic Oncology Department, Complejo Hospitalario de Navarra, Irunlarrea 3, 31008, Pamplona, Spain, jiarraras@correo.cop.es.
Summary
The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C15-PAL) is a reliable and valid tool for assessing Spanish patients with bone metastasis. This validation supports its use in palliative cancer care.
Area of Science:
- Oncology
- Psychometrics
- Palliative Care
Background:
- Quality of life (QL) is crucial for advanced cancer patients.
- The EORTC QLQ-C15-PAL is a validated tool for palliative care.
- Validation in Spanish populations with bone metastasis is needed.
Purpose of the Study:
- Validate the EORTC QLQ-C15-PAL for Spanish patients with bone metastasis.
- Assess psychometric properties including structure, reliability, and validity.
- Support the use of the QLQ-C15-PAL in this specific patient group.
Main Methods:
- Consecutive sample of stage IV cancer patients with bone metastases.
- Two assessments: baseline and one month post-radiotherapy.
- Psychometric evaluation including multitrait scaling and Cronbach's alpha.
Main Results:
- High convergent validity; most scales showed good divergent validity.
- Cronbach's alpha met criteria for most scales.
- Significant differences in QL noted based on mortality, prior chemotherapy, performance status, and RT sessions.
Conclusions:
- The EORTC QLQ-C15-PAL is a reliable and valid instrument for Spanish patients.
- Results align with previous validation studies.
- Confirms utility in palliative cancer care for bone metastasis.