Spatial Distribution and Clustering Patterns of Cognitive Impairment Among the Older Population - 31 PLADs, China, 2024.

WHAT IS ALREADY KNOWN ABOUT THIS TOPIC?: As the Chinese population ages, the prevalence of cognitive impairment among older adults continues to increase. Cognitive impairment severely restricts daily activities and creates significant social and economic burdens.

WHAT IS ADDED BY THIS REPORT?: Using nationally representative data from the China Survey of Aging and Health (CAHS), this study found that the weighted prevalence of subjective cognitive decline and mild cognitive impairment among individuals aged 65 years and older in China was 38.8% and 28.4% in 2024, respectively, and both showed spatial clustering.

WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE?: Through the analysis of spatial distribution patterns and identification of high-risk regions of cognitive impairment, this study provides critical information for developing targeted regional prevention and control interventions.