Social Determinants of Blood Pressure in U.S. Adults
This project applies multiple linear regression to data from the National Health and Nutrition Examination Survey (NHANES) 2021–2023 — a nationally representative CDC health survey — to examine how much of the variation in systolic blood pressure can be explained by social determinants of health: education, poverty, food security, physical activity, and lifestyle factors.
The project is organised into four parts:
Overview
A concise overview of the analysis, key findings, and the most important visualisations.
Exploratory Data Analysis
Sample characteristics, variable distributions, and unadjusted associations between SDoH factors and blood pressure.
Full Report
Complete model specification, a comparison of the base demographic model against the full SDoH model, regression diagnostics, and full coefficient tables.
Guide
A guided version of the analysis with collapsible sections explaining each step, the modelling choices, and the diagnostics.