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Psychometric testing of the Caregiver Quality of Life Index-Cancer scale in an Iranian sample of family caregivers to newly diagnosed breast cancer women
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden; Center for Nursing Care Research, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran .
Center for Nursing Care Research, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran .
Örebro University, School of Health and Medical Sciences, Örebro University, Sweden.ORCID iD: 0000-0002-4752-902X
2012 (English)In: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 21, no 3-4, p. 573-584Article in journal (Refereed) Published
Abstract [en]

Aim: To translate and test the reliability and validity of the Persian version of the Caregiver Quality of Life Index-Cancer scale.

Background: Research across many countries has determined quality of life of cancer patients, but few attempts have been made to measure the quality of life of family caregivers of patients with breast cancer. The Caregiver Quality of Life Index-Cancer scale was developed for this purpose, but until now, it has not been translated into or tested in the Persian language.

Design: Methodological research design. Methods. After standard translation, the 35-item Caregiver Quality of Life Index-Cancer scale was administered to 166 Iranian family caregivers of patients with breast cancer. A confirmatory factor analysis was carried out using LISREL to test the scale's construct validity. Further, the internal consistency and convergent validity of the instrument were tested. For convergent validity, four instruments were used in the study: sense of coherence scale, spirituality perspective scale, health index and brief religious coping scale.

Results: The confirmatory factor analysis resulted in the same four-factor structure as the original, though, with somewhat different item loadings. The Persian version of the Caregiver Quality of Life Index-Cancer scales had satisfactory internal consistency ( 0 72-0 90). Tests of convergent validity showed that all hypotheses were confirmed. A hierarchical multiple regression analysis additionally confirmed the convergent validity between the total Caregiver Quality of Life Index-Cancer score and sense of coherence ((beta) over cap = 0 34), negative religious coping ((beta) over cap = -0 21), education ((beta) over cap = 0 24) and the more severe stage of breast cancer ((beta) over cap = 0 23), in total explaining 41% of the variance.

Conclusion: The Persian version of the Caregiver Quality of Life Index-Cancer scale could be a reliable and valid measure in Iranian family caregivers of patients with breast cancer.

Relevance to clinical practice: The Persian version of the Caregiver Quality of Life Index-Cancer scale is simple to administer and will help nurses to identify the nursing needs of family caregivers.

Place, publisher, year, edition, pages
Malden, USA: Wiley-Blackwell, 2012. Vol. 21, no 3-4, p. 573-584
Keywords [en]
Caregiver Quality of Life Index-Cancer, confirmatory factor analysis, family caregivers, quality of life, reliability, validity
National Category
Nursing
Research subject
Caring sciences
Identifiers
URN: urn:nbn:se:oru:diva-22131DOI: 10.1111/j.1365-2702.2011.03850.xISI: 000298793400028PubMedID: 21923672Scopus ID: 2-s2.0-84855354889OAI: oai:DiVA.org:oru-22131DiVA, id: diva2:510506
Available from: 2012-03-16 Created: 2012-03-16 Last updated: 2017-12-07Bibliographically approved

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Langius-Eklöf, Ann

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