Cross-sectional survey identifies spatial clustering of cognitive impairment among elderly hypertensive patients, suggesting targeted interventions.
Key Points
To investigate the spatial variability of cognitive impairment among elderly hypertensive patients and identify influencing factors.
Cross-sectional survey conducted among 18,963 patients aged ≥ 65 years with hypertension in Jia County, China.
Bayesian Spatial Variable Coefficient model used to assess determinants’ spatial contributions via Spatial Target Variable Contribution Index.
Multi-Scale Geographically Weighted Regression model employed to analyze spatial scale and directional variation of influencing factors.
Central-northern rural communities showed significant high-high clustering of cognitive impairment (Global Moran’s I = 0.17, p < 0.001).
Lifestyle factors, particularly physical activity (STVPI = 8.62%, 95% CI: 5.64%–13.01%) and adequate sleep (STVPI = 5.21%, 95% CI: 2.26%–10.36%), were found to be the main modifiable factors.
Income, healthcare access, and cooking environment exhibited significant spatial heterogeneity, indicating location-specific needs for interventions.