Prevalence of Chronic Diseases and Patterns of Multimorbidity Among Older Adults in Zhejiang, China: A Cross-Sectional Analysis Utilizing Electronic Health Records

China has implemented national essential public health services (NEPHS) to strengthen its primary health care system. These services are continuously adjusted in accordance with factors such as public health service requirements. Previous research has indicated significant variability in the prevalence and patterns of multimorbidity. This study utilizes the Electronic Health Records in 2021 (<i>N</i> = 4,045,684) to describe the prevalence of major chronic diseases and explore common patterns of multimorbidity among older adults in Zhejiang, China. Results show that the prevalence of multimorbidity was 36.04%, with the most common pattern of multimorbidity being hypertension and dyslipidemia (12.66%), followed by hypertension and diabetes (5.46%), and hypertension, dyslipidemia, and diabetes (3.95%). The NEPHS should consider embracing the strategic management framework of the Guided Care Model, shifting the focus from a purely disease-oriented to a more holistic patient-oriented model.