Laurie Graffouillère1, Mélanie Deschasaux1, François Mariotti2, Lola Neufcourt1, Nitin Shivappa3, James R Hébert3, Michael D Wirth3, Paule Latino-Martel1, Serge Hercberg4, Pilar Galan1, Chantal Julia4, Emmanuelle Kesse-Guyot1, Mathilde Touvier5. 1. Nutritional Epidemiology Research Team, Sorbonne Paris Cité Epidemiology and Statistics Research Center, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (Cnam), Paris 5, 7, 13 Universities, Bobigny, France; 2. UMR 914 Nutrition Physiology and Ingestive Behavior, AgroParisTech, Research Center in Human Nutrition from the Ile-de-France region, Paris, France; UMR 914 Nutrition Physiology and Ingestive Behavior, French National Institute for Agricultural Research (Inra), Research Center in Human Nutrition from the Ile-de-France region, Paris, France; 3. Department of Epidemiology and Biostatistics, Arnold School of Public Health, Cancer Prevention and Control Program, University of South Carolina, Columbia, SC; Connecting Health Innovations, Columbia, SC; and. 4. Nutritional Epidemiology Research Team, Sorbonne Paris Cité Epidemiology and Statistics Research Center, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (Cnam), Paris 5, 7, 13 Universities, Bobigny, France; Public Health Department, Avicenne Hospital, Bobigny, France. 5. Nutritional Epidemiology Research Team, Sorbonne Paris Cité Epidemiology and Statistics Research Center, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (Cnam), Paris 5, 7, 13 Universities, Bobigny, France; m.touvier@eren.smbh.univ-paris13.fr.
Abstract
BACKGROUND: Chronic inflammation is one of the mechanisms involved in carcinogenesis. Diet is a major source of pro- and anti-inflammatory compounds. The Dietary Inflammatory Index (DII) was designed to estimate its overall inflammatory potential. OBJECTIVE: Our objective was to investigate the associations between the DII and overall, breast, and prostate cancer risks. METHODS: This prospective study included 6542 participants [3771 women and 2771 men with a mean ± SD age of 49.2 ± 6.4 y and a BMI (in kg/m2) of 24.0 ± 3.6 at baseline] from the Supplémentation en VItamines et Minéraux AntioXydants (SU.VI.MAX) cohort who completed at least six 24-h dietary records during the first 2 y of follow-up. The DII was based on 36 food variables. Higher scores corresponded to more proinflammatory diets. A total of 559 incident cancers were diagnosed (median follow-up, 12.6 y), including 158 female breast and 123 prostate cancers (the 2 main cancer sites in this cohort). Associations were characterized by multivariable Cox proportional hazards models. Stratified analyses were performed according to the median of usual daily alcohol intake. RESULTS: Sex-specific quartiles of the DII were positively associated with prostate cancer risk [quartile (Q) 4 compared with Q1, HR: 2.08; 95% CI: 1.06, 4.09] but not with overall or breast cancer risks. There was an interaction between the DII and alcohol intake (grams per day) on overall cancer risk (P-interaction = 0.02): the DII was positively associated with overall cancer risk in low-to-moderate alcohol drinkers (Q4 compared with Q1 HR: 1.75; 95% CI: 1.15, 2.68; P-trend = 0.02), whereas no association was detected in higher consumers of alcohol (P-trend = 0.8). This interaction was also observed for breast cancer (P-interaction = 0.001). CONCLUSION: Consistent with mechanistic data, findings from this study indicated that proinflammatory diets are associated with increased prostate cancer risk and, in low-to-moderate alcohol drinkers, with increased overall and breast cancer risk. The SU.VI.MAX trial was registered at clinicaltrials.gov as NCT00272428.
BACKGROUND:Chronic inflammation is one of the mechanisms involved in carcinogenesis. Diet is a major source of pro- and anti-inflammatory compounds. The Dietary Inflammatory Index (DII) was designed to estimate its overall inflammatory potential. OBJECTIVE: Our objective was to investigate the associations between the DII and overall, breast, and prostate cancer risks. METHODS: This prospective study included 6542 participants [3771 women and 2771 men with a mean ± SD age of 49.2 ± 6.4 y and a BMI (in kg/m2) of 24.0 ± 3.6 at baseline] from the Supplémentation en VItamines et Minéraux AntioXydants (SU.VI.MAX) cohort who completed at least six 24-h dietary records during the first 2 y of follow-up. The DII was based on 36 food variables. Higher scores corresponded to more proinflammatory diets. A total of 559 incident cancers were diagnosed (median follow-up, 12.6 y), including 158 female breast and 123 prostate cancers (the 2 main cancer sites in this cohort). Associations were characterized by multivariable Cox proportional hazards models. Stratified analyses were performed according to the median of usual daily alcohol intake. RESULTS: Sex-specific quartiles of the DII were positively associated with prostate cancer risk [quartile (Q) 4 compared with Q1, HR: 2.08; 95% CI: 1.06, 4.09] but not with overall or breast cancer risks. There was an interaction between the DII and alcohol intake (grams per day) on overall cancer risk (P-interaction = 0.02): the DII was positively associated with overall cancer risk in low-to-moderate alcohol drinkers (Q4 compared with Q1 HR: 1.75; 95% CI: 1.15, 2.68; P-trend = 0.02), whereas no association was detected in higher consumers of alcohol (P-trend = 0.8). This interaction was also observed for breast cancer (P-interaction = 0.001). CONCLUSION: Consistent with mechanistic data, findings from this study indicated that proinflammatory diets are associated with increased prostate cancer risk and, in low-to-moderate alcohol drinkers, with increased overall and breast cancer risk. The SU.VI.MAX trial was registered at clinicaltrials.gov as NCT00272428.
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