Abstract 100: Association of the Mediterranean Diet with White Matter Integrity Among Hispanics/Latinos. Final Results from the Study of Latinos-Investigation of Neurocognitive Aging-MRI (SOL-INCA-MRI) Ancillary Study

Stroke, Volume 56, Issue Suppl_1, Page A100-A100, February 1, 2025. Background:High adherence to the Mediterranean Diet (MeDi) was associated with better cognitive performance and decreased memory decline among Hispanic or Latino adults.Objective:Investigate if higher adherence to the MeDi improves white matter (WM) integrity among Hispanic/Latino adults and if this effect is mediated by cardiovascular health (CVH).Methods:We included 2,774 participants from the Study of Latinos-Investigation of Neurocognitive Aging-MRI Ancillary Study. Participants completed 24-hour dietary recalls at baseline (2008-2011) which were used to calculate a MeDi score (MeDiS, range 0-9). Brain MRI and diffusion tensor images were collected between 2018 and 2022 on a 3T MRI scanner using a standardized protocol. WM integrity was ascertained using WM hyperintensity (WMH) volume and fractional anisotropy (FA). WMH volumes were residualized for total cranial volume and Ln-transformed prior to analysis. The association of MRI outcomes with MeDiS and its components was investigated using weighted linear regression analysis with complex survey design adjusting for age, sex, sociodemographic characteristics. Cardiovascular health was assessed using the Life’s Simple 7 (LS7, range 0-14) score. The mediating effect of LS7 on the primary outcome was reported as Average Causal Mediation Effects (ACME) and Average Direct Effects (ADE). Statistical significance was set at p

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Gennaio 2025