Marissa M Shams-White1, Nigel T Brockton2, Panagiota Mitrou3, Lisa L Kahle4, Jill Reedy1. 1. Risk Factor Assessment Branch, Epidemiology and Genomics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA. 2. American Institute for Cancer Research, Arlington, VA, USA. 3. World Cancer Research Fund International, London, United Kingdom. 4. Information Management Services, Inc., Rockville, MD, USA.
Abstract
Background: The World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) published Cancer Prevention Recommendations in 2018 focused on modifiable lifestyle factors. Objectives: The aim was to examine how adherence to WCRF/AICR recommendations via the 2018 WCRF/AICR score is associated with risk for all-cause, cancer, and cardiovascular disease (CVD) mortality outcomes among older US adults. Methods: Baseline and follow-up questionnaire data (n = 177,410) were used to calculate weight, physical activity, and diet components of the 2018 WCRF/AICR score (0-7 total points). Adjusted HRs and 95% CIs were estimated, stratified by sex and smoking status. Results: There were 16,055 deaths during a mean of 14.2 person-years. Each 1-point score increase was associated with a 9-26% reduced mortality risk for all outcomes, except for current male smokers' cancer mortality risk. When the score was categorized comparing highest (5-7 points) with lowest (0-2 points) scores, associations with reduced all-cause mortality risk were strongest in former smokers (HRmales: 0.51; 95% CI: 0.43, 0.61; HRfemales: 0.38; 95% CI: 0.31, 0.46), followed by current smokers (HRmales: 0.55; 95% CI: 0.34, 0.89; HRfemales: 0.44; 95% CI: 0.32, 0.59) and never smokers (HRmales: 0.57; 95% CI: 0.47, 0.70; HRfemales: 0.50; 95% CI: 0.41, 0.60). An association with cancer mortality risk was also seen in former smokers (HRmales: 0.59; 95% CI: 0.43, 0.81; HRfemales: 0.52; 95% CI: 0.37, 0.73) and female current (HRfemales: 0.55; 95% CI: 0.32, 0.96) and never (HRfemales: 0.57; 95% CI: 0.40, 0.80) smokers; findings were not statistically significant in other strata. For CVD mortality, highest compared with lowest scores were associated with a 49-73% risk reduction, except in male never and current smokers. In exploratory analysis, physical activity, body weight, alcohol, and plant-based foods were found to be predominant components in the score. Conclusions: Greater 2018 WCRF/AICR scores were associated with lower mortality risk among older adults. Future research can explore how smoking modifies these relations, and further examine different populations and other cancer-relevant outcomes. Published by Oxford University Press on behalf of the American Society for Nutrition 2022.
Background: The World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) published Cancer Prevention Recommendations in 2018 focused on modifiable lifestyle factors. Objectives: The aim was to examine how adherence to WCRF/AICR recommendations via the 2018 WCRF/AICR score is associated with risk for all-cause, cancer, and cardiovascular disease (CVD) mortality outcomes among older US adults. Methods: Baseline and follow-up questionnaire data (n = 177,410) were used to calculate weight, physical activity, and diet components of the 2018 WCRF/AICR score (0-7 total points). Adjusted HRs and 95% CIs were estimated, stratified by sex and smoking status. Results: There were 16,055 deaths during a mean of 14.2 person-years. Each 1-point score increase was associated with a 9-26% reduced mortality risk for all outcomes, except for current male smokers' cancer mortality risk. When the score was categorized comparing highest (5-7 points) with lowest (0-2 points) scores, associations with reduced all-cause mortality risk were strongest in former smokers (HRmales: 0.51; 95% CI: 0.43, 0.61; HRfemales: 0.38; 95% CI: 0.31, 0.46), followed by current smokers (HRmales: 0.55; 95% CI: 0.34, 0.89; HRfemales: 0.44; 95% CI: 0.32, 0.59) and never smokers (HRmales: 0.57; 95% CI: 0.47, 0.70; HRfemales: 0.50; 95% CI: 0.41, 0.60). An association with cancer mortality risk was also seen in former smokers (HRmales: 0.59; 95% CI: 0.43, 0.81; HRfemales: 0.52; 95% CI: 0.37, 0.73) and female current (HRfemales: 0.55; 95% CI: 0.32, 0.96) and never (HRfemales: 0.57; 95% CI: 0.40, 0.80) smokers; findings were not statistically significant in other strata. For CVD mortality, highest compared with lowest scores were associated with a 49-73% risk reduction, except in male never and current smokers. In exploratory analysis, physical activity, body weight, alcohol, and plant-based foods were found to be predominant components in the score. Conclusions: Greater 2018 WCRF/AICR scores were associated with lower mortality risk among older adults. Future research can explore how smoking modifies these relations, and further examine different populations and other cancer-relevant outcomes. Published by Oxford University Press on behalf of the American Society for Nutrition 2022.
Entities:
Keywords:
adherence score; cancer prevention; diet; dietary guidelines; index score; nutrition; obesity; older adults; physical activity; weight
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