Abstract
Healthy lifestyles are associated with better health-related quality of life (HRQoL), favorable prognosis and lower mortality in breast cancer (BC) survivors. We investigated changes in HRQoL after a 12-month lifestyle modification program in 227 BC survivors participating in DEDiCa trial (Mediterranean diet, exercise, vitamin D). HRQoL was evaluated through validated questionnaires: EQ-5D-3L, EORTC-QLQ-C30 and EORTC QLQ-BR23. Baseline changes were tested using analysis of variance. Multiple regression analyses were performed to assess treatment effects on HRQoL. Increases were observed in global health status (p < 0.001), physical (p = 0.003), role (p = 0.002) and social functioning (p < 0.001), body image (p < 0.001), future perspective (p < 0.001), well-being (p = 0.001), and reductions in fatigue (p < 0.001), nausea and vomiting (p = 0.015), dyspnea (p = 0.001), consti-pation (p = 0.049), financial problems (p = 0.012), sexual functioning (p = 0.025), systematic therapy side effects (p < 0.001) and breast symptoms (p = 0.004). Multiple regression analyses found inverse associations between changes in BMI and global health status (p = 0.048) and between serum 25(OH)D levels and breast symptoms (p = 0.002). A healthy lifestyle treatment of traditional Mediterranean diet and exercise may impact positively on HRQoL in BC survivors possibly through reductions in body weight while vitamin D sufficiency may improve BC-related symptoms. These findings are relevant to BC survivors whose lower HRQoL negatively affects treatment compliance and disease outcomes. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Original language | English |
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Pages (from-to) | 1-15 |
Number of pages | 15 |
Journal | Nutrients |
Volume | 13 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2021 |
Keywords
- Breast cancer
- Lifestyle
- Mediterranean diet
- Physical activity
- Quality of life
- Vitamin D
- 25 hydroxyvitamin D
- vitamin D
- adult
- Article
- body image
- body mass
- breast cancer
- cancer survivor
- constipation
- controlled study
- dyspnea
- European Organization for Research and Treatment of Cancer Quality of Life Questionnaire BR23
- European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30
- European Quality of Life 5 Dimensions 3 Level questionnaire
- fatigue
- female
- financial deficit
- global health
- health status
- human
- human tissue
- lifestyle modification
- major clinical study
- middle aged
- multicenter study
- multiple regression
- nausea and vomiting
- physical capacity
- quality of life
- quality of life assessment
- randomized controlled trial
- sexuality
- social interaction
- wellbeing
- breast tumor
- clinical trial
- complication
- diet
- dietary supplement
- healthy lifestyle
- kinesiotherapy
- patient compliance
- psychology
- questionnaire
- survivorship
- treatment outcome
- Adult
- Breast Neoplasms
- Cancer Survivors
- Diet Surveys
- Diet, Mediterranean
- Dietary Supplements
- Exercise Therapy
- Female
- Health Status
- Healthy Lifestyle
- Humans
- Middle Aged
- Patient Compliance
- Quality of Life
- Surveys and Questionnaires
- Survivorship
- Treatment Outcome