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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Does Illness Perception Explain Quality of Life of Patients With Prostate Cancer?

1
Department of Preventive Medicine, Medical Academy, Lithuanian University of Health Sciences
2
Department of Urology, Medical Academy, Lithuanian University of Health Sciences
3
Division of Oncourology, Institute of Oncology, Vilnius University, Lithuania
*
Author to whom correspondence should be addressed.
Medicina 2013, 49(5), 38; https://doi.org/10.3390/medicina49050038
Received: 24 August 2012 / Accepted: 30 May 2013 / Published: 4 June 2013
Background. It is licely that illness perceptions can explain variations in quality of life of patients with prostate cancer across different treatment methods and stages. Therefore, the aim of this study was to determine if illness perception can explain variations in quality of life of patients with prostate cancer.
Material and Methods
. The cross-sectional national-level study was carried out. Quality of life was evaluated with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 and the Visual Analogue Scale. Illness perceptions were measured by the revised Illness Perception Questionnaire.
Results
. The response rate was 77.1% (N=501). The variation in global quality of life was explained (32.0%) by levels of emotional representation (β=–0.126; P=0.023) and consequences (β=–0.209; P<0.01); physical functioning (27.0%), by consequences (β=–0.203; P<0.01) and chemotherapy (β=–2.911; P=0.007); role functioning (37.0%), by emotional representations (β=–0.198; P<0.01), timeline cyclical (β=–0.209; P=0.014), and stage of the disease (β=–0.779; P=0.007); emotional functioning (43.0%), by emotional representations (β=–0.361; P<0.01) and education level (β=–0.566; P=0.025); cognitive functioning (34.0%), by educational level (β=0.714; P=0.005), emotional representations (β=–0.118; P=0.019), illness coherence (β=–0.167; P=0.030), consequences (β=–0.187; P=0.001), and hormonal therapy (β=–0.778; P=0.049); and social functioning (39.0%), by consequences (β=–0.320; P<0.01) and combined treatment (β=–1.492; P=0.016).
Conclusions
. Illness perceptions may be important while investigating quality of life in patients with prostate cancer. It may underlie quality-of-life differences in this group of patients and could inform decision makers about the importance of the provision of psychosocial services to patients with prostate cancer.
Keywords: prostate cancer; illness perceptions; patient beliefs; quality of life prostate cancer; illness perceptions; patient beliefs; quality of life
MDPI and ACS Style

Mickevičienė, A.; Vanagas, G.; Jievaltas, M.; Ulys, A. Does Illness Perception Explain Quality of Life of Patients With Prostate Cancer? Medicina 2013, 49, 38.

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