Abstract: Objective Grounded in the Andersen model, this study aimed to analyze the utilization of Integrated Mental Health and Rehabilitation Services (Jingkang Services) and its determinants among community-dwelling patients with severe mental disorders (SMDs) in Foshan The findings are intended to provide an evidentiary basis for the promotion and dissemination of these services. Methods A cross-sectional questionnaire-based survey was conducted between October and December 2022. A multistage random sampling methodology was employed to recruit participants from the registry of community-dwelling patients with SMDs in Foshan. Descriptive statistical analysis was used to characterize the status of service utilization, while logistic regression analysis was performed to identify the influencing factors. Results A total of 1 034 patients were included in the final analysis. The cohort was predominantly female (n=535, 51.74%) and aged between 18 and 44 years (n=407, 39.36%). Of the participants, 679 (65.67%) had utilized the services, with health management services being the most frequently accessed category (49.71%). A substantial majority of patients (n=985, 95.26%) perceived a need for these services. The logistic regression results revealed that service utilization was significantly associated with patient's age (18-<45 years OR=2.138; 45-<60 years OR=3.317; ≥60 years OR=2.501), guardian's educational attainment (junior high/high school/vocational school OR=1.838), guardian's relationship to the patient (offspring OR=1.814), quality of life (moderate OR=1.952; high OR=1.451), service delivery location (village/neighborhood committee OR=2.773), duration of local service provision (>2 years OR=2.293), and satisfaction with the community-based mental health rehabilitation system (moderate OR=1.569; satisfied OR=2.251) (all P<0.05). Conclusion The utilization of Integrated Mental Health and Rehabilitation Services among community-dwelling patients with SMDs in Foshan is substantially lower than the perceived need. It is recommended that sub-district and township authorities implement tailored strategies based on the identified determinants—including patient and guardian characteristics, service point location, and program duration—to promote service uptake and ensure higher utilization rates.

Key words: Severe mental disorders, Social work services, Integrated Mental Health and Rehabilitation Services, Influencing factors