Participation by patients with chronic diseases under primary health care requires more attention to achieve effective disease management and better health outcomes. In 2016, China proposed accelerating the establishment of a system of family doctors (FDs) and strengthening doctor-patient communication to better meet residents’ health service needs. This study aimed to describe perceived participation in primary health care among patients with chronic diseases in northeastern China and explore the impact of FD contract services and patient’s trust on patients’ perceived participation. A cross-sectional survey of 847 patients with chronic diseases in 16 primary healthcare institutions was conducted in Jilin Province, China. Among all participants, 453 patients reported signing up for FD contract services (62.93%). The perceived participation of patients with chronic diseases was at a low level (mean = 6.71 and SD = 3.35). After controlling for sociodemographic variables and health-related variables, FD contract services directly and indirectly influenced patients’ perceived participation. The patient’s trust was a mediator in the relationship between FD contract services and perceived participation. This study confirmed the valuation of family doctor contract services and provided a theoretical basis for the formulation of primary health service policies. Health organizations should continue to enhance the capacity of primary health services and attract more chronic disease patients to contract with FD teams, thereby enhancing doctor-patient trust and increasing patient’s participation in primary health care.

Background As a global pandemic, The Corona Virus Disease 2019 (COVID-19) has brought significant challenges to the primary health care (PHC) system. Health professionals are constantly affected by the pandemic's harmful impact on their mental health and are at significant risk of job burnout. Therefore, it is essential to gain a comprehensive understanding of how their burnout was affected. The study aimed to examine the relationship between COVID-19 event strength and job burnout among PHC providers and to explore the single mediating effect of job stress and work engagement and the chain mediating effect of these two variables on this relationship. Methods We used multilevel stratified convenience sampling to recruit participants from PHC institutions in Jilin Province, China. A total of 1148 medical professionals completed questionnaires regarding sociodemographic characteristics, COVID-19 event strength, job stress, work engagement, and job burnout. The chain mediation model was analysed using SPSS PROCESS 3.5 Macro Model 6. Results COVID-19 event strength not only positively predicted job burnout, but also indirectly influenced job burnout through the mediation of job stress and work engagement, thereby influencing job burnout through the "job stress → work engagement" chain. Conclusions This study extends the application of event systems theory and enriches the literature about how the COVID-19 pandemic impacted PHC medical staff job burnout. The findings derived from our study have critical implications for current and future emergency response and public policy in the long-term COVID-19 disease management period.