Abstract TU148: Predicted Shallow Groundwater Nitrate Concentrations Have Little Effect on the Association between Private Well Use and Rates of Hypertensive Heart Disease, Ischemic Heart Disease, and Stroke/Cerebrovascular Deaths in Alabama

Moylan et al. (2026) conducted an observational in Hypertensive heart disease, ischemic heart disease, and stroke/cerebrovascular deaths (n=3,924). High percent private well use and median groundwater nitrate concentration vs. Lower percent private well use and lower nitrate concentration was evaluated on Hypertensive heart disease mortality (RR 0.89, 95% CI 0.83-0.95). The protective association between high private well use and hypertensive heart disease mortality (RR 0.89; 95% CI 0.83-0.95) did not significantly depend on median groundwater nitrate concentration.