Background: Little is known about how changes in a constellation of lifestyle factors affect health-related quality of life (HRQoL) in colorectal cancer (CRC) survivors. Our study aimed to investigate the association between changes in healthy lifestyle and HRQoL over time in survivors of stage I-IV CRC. Methods:We included 2,283 long-term ($5 years postdiagnosis) survivors. A healthy lifestyle score (HLS) comprising smoking, alcohol consumption, diet, physical activity, and body fatnesswas derived at diagnosis and 5-year follow-up (5YFU) and categorized as low, moderate, or high. We assessed HRQoL with the EORTC Quality of Life Questionnaire-Core 30 at 5YFU and 10-year follow-up.We usedmultivariable linear regression and linear mixed models to explore associations between changes inHLS andHRQoL over follow-up. Results: Alowbaseline HLS was associated with poorer functioning and global health/QoL and a higher symptom burden at 5YFU compared with a high baseline HLS. An improved HLS frombaseline to 5YFU was associated with better functioning, higher global health/QoL, and fewer symptoms at 5YFU than a maintained-high HLS. In longitudinal analyses, improved HLS was associated with better functioning at follow-up. Survivors with a maintainedhigh or an improved HLS reported generally less fatigue, pain, and dyspnea at follow-ups compared with survivors with a maintained-low or decreased HLS. Conclusions: Change toward a healthier lifestyle since diagnosis was associated with better HRQoL in long-term CRC survivors. Our results support the importance of maintaining and/or promoting a healthier lifestyle amongCRCsurvivors postdiagnosis.
CITATION STYLE
Eyl-Armbruster, R. E., Thong, M. S. Y., Carr, P. R., Jansen, L., Chang-Claude, J., Hoffmeister, M., … Arndt, V. (2022). Change Toward Healthier Lifestyles Is Associated With Better Health-Related Quality of Life in Long-Term Colorectal Cancer Survivors. JNCCN Journal of the National Comprehensive Cancer Network, 20(11), 1233–1243. https://doi.org/10.6004/jnccn.2022.7049
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