Illness perceptions within 6 months of cancer diagnosis are an independent prospective predictor of health-related quality of life 15 months post-diagnosis

TitreIllness perceptions within 6 months of cancer diagnosis are an independent prospective predictor of health-related quality of life 15 months post-diagnosis
Publication TypeJournal Article
Year of Publication2015
AuthorsAshley, L, Marti, J, Jones, H, Velikova, G, Wright, P
JournalPsycho-Oncology
Volume24
Issue11
Pagination1463 - 1470
Date Published11/2015
URLhttp://doi.wiley.com/10.1002/pon.3812https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpon.3812
DOI10.1002/pon.3812
Accession NumberPMID: 25946704
Abstract

Objective

Studies have found that illness perceptions explain significant variance in health outcomes in numerous diseases. However, most of the research is cross-sectional and non-oncological. We examined, for the first time in breast, colorectal and prostate cancer patients, if cognitive and emotional illness perceptions near diagnosis predict future multidimensional health-related quality of life (HRQoL).

Methods

UK-based patients (N = 334) completed the illness perception questionnaire-revised within 6 months post-diagnosis and the quality of life in adult cancer survivors scale 15 months post-diagnosis. Sociodemographic and clinical data were obtained from medical records. Hierarchical multiple regression analyses were conducted.

Results

The sociodemographic and clinical factors collectively significantly predicted 8/12 HRQoL domains, although for 5/8 accounted for <10% of the variance. For all 12 HRQoL domains, illness perceptions collectively explained significant substantial additional variance (∆R2 range: 5.6–27.9%), and a single illness perception questionnaire-revised dimension was the best individual predictor of 9/12 HRQoL domains. The consequences dimension independently predicted 7/12 HRQoL domains; patients who believed their cancer would have a more serious negative impact on their life reported poorer future HRQoL. The emotional representations and identity dimensions also predicted multiple HRQoL domains.

Conclusions

Future research should focus on realising the potential of illness perceptions as a modifiable target for and mediating mechanism of interventions to improve patients' HRQoL. Copyright © 2015 John Wiley & Sons, Ltd.

Short TitlePsycho-Oncology
Citation Key / SERVAL ID8255
Peer reviewRefereed

                         

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