This repository contains R Markdown (.Rmd) files and R scripts used for analyzing the relationship between iron intake/status, choline intake, and geriatric cognition across multiple large-scale population datasets.
- NHANES (National Health and Nutrition Examination Survey)
- UK Biobank
- Framingham Heart Study (FHS)
These datasets were harmonized and processed to evaluate nutritional biomarkers, dietary intake, and cognitive outcomes in older adults.
- End-to-end analysis workflows
- Exploratory data analysis (EDA)
- Model fitting (regression, mixed models)
- Sensitivity analyses across datasets
- Data cleaning + preprocessing
- Feature harmonization across datasets
- Variable construction (iron biomarkers, choline intake levels, cognition scores)
- Statistical modeling functions
To examine whether interactions between iron biomarkers , dietary iron intake and dietary choline intake are associated with cognitive performance in older adults, using complementary population cohorts.