Validation of the Duke University Religion Index (DUREL) in Portuguese cancer patients undergoing chemotherapy

Helga Martins, Sílvia Caldeira*, Tiago Dias Domingues, Margarida Vieira, Harold G. Koenig

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Religion is one of the strategies used to cope with life stressful events, particularly in cancer patients. This study aimed to translate, adapt and validate the 5-item Duke University Religion Index (DUREL) into European Portuguese. This is a cross-sectional study in a sample of cancer patients receiving chemotherapy. Data were collected in July–October 2018, and the study was approved by the ethics committee of the institution. A sample of 150 participants was included (64.7% female and 35.3% male), aged 35–83 years, and mainly Catholic (86.7%). Participants who were females, older, had lower education and from evangelical religious traditions scored higher on the total score. The Cronbach’s alpha was 0.89. Factor analysis revealed a one-factor solution. Convergent validity was achieved between DUREL and BIAC (r = 0.78; p < 0.01). The DUREL European Portuguese version is a valid and reliable tool for measuring religious commitment in cancer patients undergoing chemotherapy.
Original languageEnglish
Pages (from-to)3562-3575
Number of pages14
JournalJournal of Religion and Health
Issue number5
Publication statusPublished - Oct 2021


  • Nursing
  • Religion
  • Spirituality
  • Tools
  • Validation studies


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