• Fatemeh Sheikhhossein, Hossein Imani, Mohammad Reza Amini, Fatemeh Hosseini, and Sakineh Shab-Bidar.
• Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
• Int. J. Clin. Pract. 2021 Nov 1; 75 (11): e14780.

ObjectivesRecently, a new eating pattern called "Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND)" has been coined. This study was aimed to examine the association between adherence to the MIND diet and risk of breast cancer (BC) among Iranian women.MethodsIn this hospital-based case-control study, 150 newly diagnosed BC cases and 150 age-matched controls were included. All cases were pathologically confirmed BC patients, with no history of any type of other pathologically confirmed cancers. Controls were selected from visitors, relatives and friends of non-cancer patients in other wards, which had no family relationship with cases. Dietary intakes of study participants were assessed using a validated 147-item semi-quantitative food frequency questionnaire (FFQ). The MIND diet score was computed based on participants' dietary intakes obtained from FFQ, Regression logistic models were used to examine the association between the MIND diet score and BC.ResultsExamining the whole study population, we found no significant association between the MIND diet score and odds of BC, either before (ORs for comparing T3 vs. T1: 0.818; 95% CI: 0.469-1.42, P-trend = .48) or after controlling for potential confounders (ORs for T3 vs. T1: 1.32; 95% CI: 0.31-5.64, P-trend = .633). This was also the case for pre-menopausal and post-menopausal when analyzed separately. We also failed to find any significant association between the MIND diet score and odds of BC after controlling for potential confounders in both pre-menopausal and post-menopausal.ConclusionIn conclusion, we found that adherence to the MIND diet was not associated with odds of BC in this case-control study. Further studies are required to confirm these findings.© 2021 John Wiley & Sons Ltd.

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