European General Practice Research Network Riga-Latvia, Riga, Letonya, 11 - 14 Mayıs 2017, ss.65
Validity and Reliability of the Turkish Quality of Life Questionnaire for Advanced Cancer
Home Care Patients (Turk- QLQ-C15-PAL)
Pemra C. Unalan, Özge Börklü DoŒan, Serap Çifçili, Arzu Uzuner
Family Medicine, Marmara University Medical Faculty, 34662, Istanbul, Turkey.
Background: European Organization for Research and Treatment of Cancer (EORTC) Quality-ofLife Questionnaire Core 15 Palliative Care (QLQ-C15-PAL) is specifically applied to evaluating
palliative care patients’ quality of life. In this study our aim was to examine the validity and
reliability of the Turkish version of QLQ-C15-PAL for the palliative care patients with advanced
Research question: Is Turk- QLQ-C15-PAL a reliable and valid tool for advanced cancer home
Method: This methodological study is completed with a population of 147 Medical Oncology
outpatient clinic patients of Marmara University Pendik Research and Training Hospital who are
referred to Home Care Unit. The test-retest was performed to 16 of the patients in a 10-14 days
interval. QLQ-C15-PAL consists of 14 questions about physical functions, emotional function
and symptoms with a Likert scale of 4: ‘not at all’, ‘a little’, ‘quite a bit’, ‘very much’. The last
one is a general quality of life question with a visual scale from 1 (very poor) to 7 (excellent).
The questions about the sociodemographic characteristics and daily activities of life were
performed face to face by the researcher.
Results: The test-retest total scores were evaluated with Wilcoxon test (p>0,05). CronbachĮ=0,88 demonstrates the internal consistency of the questionnaire. Other than nausea, Pearson
coefficient of the symptoms correlated with each other significantly in a range of low (r=0,18)
to high degree (r=0,67). Confirmatory factor analysis was computed with Keiser-Meyer Olkin
and Barlett test and Turk- QLQ-C15-PAL was found to have 4 subgroups and the internal
consistency of these subgroups varied between r=0,49-0,89. The quality of life scores were
higher with still working and independent patients in daily life activities (p<0,05) than the
retired and dependent ones.
Conclusions: The Turkish version of EORTC-QLQ-C15-PAL is a valid and reliable instrument to
evaluate the quality of lives of Turkish palliative care cancer patients.