Reliability and responsiveness of a prostate cancer questionnaire for radiotherapy-induced side effects
2001 (English)In: Supportive Care in Cancer, ISSN 0941-4355, E-ISSN 1433-7339, Vol. 9, no 3, 187-198 p.Article in journal (Refereed) Published
Few self-assessment cancer-specific questionnaires / modules have yet been developed for radiotherapy-induced side effects. The aim of the present study was to test the reliability and responsiveness of a prostate cancer (PC)specific questionnaire. Thirty-one patients with PC graded their urinary and intestinal symptoms and their sexual function on the questionnaire. A doctor and a nurse performed a structured interview and graded the patient's symptoms with the same questions. The procedure was performed at both the start and the end of the treatment. A high concordance regarding symptom detection was seen between the patient, nurse and the doctor. The inter-rater test shows intraclass correlation coefficient (ICC) values above 0.60 in all scales. The internal reliability exceeded the lower limit (Cronbach alpha > 0.70) for all scales. The test-retest gave acceptable reliability for all scales (ICC greater than or equal to 0.60). All scales indicated increased problems during radiotherapy. The questionnaire was proven to be valid for the evaluations of urinary and intestinal problems and for sexual function in PC patients.
Place, publisher, year, edition, pages
Springer, 2001. Vol. 9, no 3, 187-198 p.
prostatic cancer, questionnaire, self-assessment, reliability, responsiveness
Cancer and Oncology
IdentifiersURN: urn:nbn:se:umu:diva-66902DOI: 10.1007/s005200000146ISI: 000168843700008OAI: oai:DiVA.org:umu-66902DiVA: diva2:610494