Investigation of the validity and reliability of the Turkish version of the Functional Assessment of Cancer Therapy-Cognitive Function in cancer patients

Uysal S., Kabak V. Y., Karakas Y., KARABULUT E., Kocamaz D. E., KESER İ., ...More

PALLIATIVE & SUPPORTIVE CARE, vol.20, no.5, pp.694-700, 2022 (SSCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 5
  • Publication Date: 2022
  • Doi Number: 10.1017/s147895152100136x
  • Journal Indexes: Social Sciences Citation Index (SSCI), Scopus, CINAHL, EMBASE, Index Islamicus, MEDLINE
  • Page Numbers: pp.694-700
  • Keywords: Cancer treatment, Cognitive function, Functional assessment, Quality of life, BREAST-CANCER, EUROPEAN-ORGANIZATION, FACT-COG, CHEMOTHERAPY, QLQ-C30, TRANSLATION, DYSFUNCTION, VALIDATION, SURVIVORS
  • Hacettepe University Affiliated: Yes


Objective The Functional Assessment of Cancer Therapy-Cognitive Function (FACT-Cog) is a questionnaire that is used to evaluate the quality of life and cognitive functions according to individual self-reports. The aim of this study was to investigate the validity and reliability of the Turkish version of the FACT-Cog. Methods Cancer patients who were treated with chemo or radiotherapy and had a score of 24/30 and more in Mini-Mental State Examination (MMSE) were included in this study. Cognitive functions assessed with the FACT-Cog and the European Organization of Research and Treatment of Cancer Quality of Life Core Questionnaire Core 30: Cognitive Function subscale (EORTC QLQ-CF). Results One hundred and forty cancer patients [female = 87 (62.1%), male = 53 (37.9%)] were included. The mean age of the participants was 47.93 +/- 11.90 years. The Cronbach's alpha of the FACT-Cog scale was 0.82. Test-retest intraclass correlation coefficient values of the FACT-Cog questionnaire were varied from 0.855 to 0.954. There were found low correlations between the total score of the FACT-Cog and the MMSE (r = 0.26, p = 0.002), and moderate correlations between the EORTC QLQ-CF subscale and the FACT-Cog (r = -0.43; p < 0.001). Significance of results It showed the validity and reliability of the Turkish version of the FACT-Cog questionnaire for cancer patients. It may be beneficial to use this questionnaire for the effects of cancer treatment.