Plant-based dietary patterns and Alzheimer's disease risk in multiethnic cohort

Clinical Score: 0.950 Price: $0.50 Alzheimer's disease and related dementias human patients Status: proposed

What This Experiment Tests

Clinical experiment designed to assess clinical efficacy targeting N/A in human patients. Primary outcome: Incident Alzheimer's disease and related dementias identified through Medicare claims

Description

This prospective longitudinal cohort study examined the association between plant-based dietary patterns and their changes over time with incident Alzheimer's disease and related dementias (ADRDs) in a large multiethnic population. The study utilized the Multiethnic Cohort Study based in Hawaii and California, following participants from baseline (1993-1996) through 10-year follow-up (2003-2008) with linked Medicare claims data to identify incident ADRD cases. Three plant-based diet indices were analyzed: overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), and unhealthful plant-based diet index (uPDI). The study examined both baseline dietary patterns and changes in dietary patterns over the 10-year period. Participants included African American, Japanese American, Latino, Native Hawaiian, and White individuals aged 45-75 years at baseline. Food frequency questionnaires were used to assess dietary intake at both time points. Cox regression models were employed to examine associations between dietary indices and ADRD risk, adjusting for relevant covariates.

TARGET GENE
N/A
MODEL SYSTEM
human patients
ESTIMATED COST
$0
TIMELINE
0 months
PATHWAY
N/A
SOURCE
extracted_from_pmid_41950435
PRIMARY OUTCOME
Incident Alzheimer's disease and related dementias identified through Medicare claims

Scoring Dimensions

Info Gain 0.00 (25%) Feasibility 0.00 (20%) Hyp Coverage 0.00 (20%) Cost Effect. 0.00 (15%) Novelty 0.00 (10%) Ethical Safety 0.00 (10%) 0.950 composite

📖 Wiki Pages

ADRD Biomarker Heterogeneity: The Zetterberg FramemechanismADRD Biomarker Heterogeneity FrameworkmechanismAlzheimer's Diseasedisease

Protocol

Prospective longitudinal cohort study using food frequency questionnaires at baseline (1993-1996) and 10-year follow-up (2003-2008), with Medicare claims linkage for ADRD identification. Three a priori plant-based diet indices (PDI, hPDI, uPDI) were calculated and analyzed using Cox regression models.

Expected Outcomes

Higher quality plant-based diets (higher PDI and hPDI) were expected to be associated with lower ADRD risk, while unhealthful plant-based diets (higher uPDI) were expected to increase risk

Success Criteria

Statistically significant associations between dietary indices and ADRD risk in Cox regression models

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