Wenyu Li,1 Yanqiu Hou,1 Jiayu An,1 Linxuan Chen,1 Shan Lu1,2 

1School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China; 2Research Centre for Rural Health Service, Key Research Institute of Humanities & Social Sciences of Hubei Provincial Department of Education, Wuhan, People’s Republic of China

Correspondence: Shan Lu, School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Hang Kong Road 13, Wuhan, 430030, People’s Republic of China, Tel +86 15827079650, Email shanlu@hust.edu.cn

Purpose: The objective of this study was to explore the connection between family doctor contract services and preventable hospitalizations. Additionally, we sought to examine the role of primary health care quality as a mediating factor in the link between family doctor contract services and preventable hospitalizations among patients with hypertension.
Patients and Methods: This cross-sectional study was performed in Dangyang (Hubei Province, Central China) and Xishui (Guizhou Province, Western China) counties in July–August 2023. Participants comprised 625 patients selected via a multi-stage sampling method. Causal mediation analysis was conducted to explore the effect of family doctor contract services on preventable hospitalizations and the mediating effect of primary healthcare quality on this relationship.
Results: Utilization rate of family doctor contract services of hypertensive patients was 58.6%, score of primary health service quality was 70.75 and incidence of preventable hospitalizations was 28.2%. Amongst hypertensive patients, utilization of family doctor contract services decreased the occurrence of preventable hospitalizations, with a total effect of − 0.22 (p < 0.001). Primary healthcare quality mediates the association, with a mediate effect of − 0.05 (p < 0.001), explaining 22.73% of the total effect.
Conclusion: Improving the utilization of family doctor contract services and primary healthcare quality may result in lower rates of preventable hospitalizations amongst hypertensive patients.

Keywords: family doctor contract services, preventable hospitalizations, primary healthcare quality, hypertension, mediation analysis