Aim: The objective of the present study was to assess the validity and reliability of Malay version of the QOLLTI-F questionnaire.
Methods: A total of 80 Malay caregivers of cancer patients in an outpatient oncology clinic were enrolled in this study. A translated QOLLTI-F questionnaire of 16 items was used in order to assess their quality of life. Demographic characteristics were recorded. Both face and content validity of the translated version were carried out by professionals and the construct validity of the questionnaire was assessed by exploratory factor analysis.
Results: Exploratory factor analysis led to the extraction of seven factors and this was consistent with the English version. Cronbach Alpha coefficient showed good consistency of the questions within the sub-scales (Cronbach's alpha > 0.7).
Conclusion: This study was confined to a Malay population, and the analyses were potentially limited by a small sample size .Nevertheless, the translated questionnaire demonstrated valid and reliable psychometric properties when administered to Malay caregivers. Future studies are needed to see if this instrument can fit other samples in different settings and populations.
Study site: Oncology clinic, Hospital Universiti Sains Malaysia (HUSM), Kelantan, Malaysia