Does a GP service package matter in addressing the absence of health management by the occupational population? A modelling study

To assess the influence of supply and demand factors on the contract behavior of occupational populations with general practitioner (GP) teams. We employed a system dynamics approach to assess and predict the effect of the general practitioner service package (GPSP) and complementary incentive policies on the contract rate for 2015–2030. First, the GPSP is designed to address the unique needs of occupational populations, enhancing the attractiveness of GP contracting services, including three personalized service contents tailored to demand-side considerations: work-related disease prevention (WDP), health education counseling (HEC), and health-care service (HCS). Second, the complementary incentive policies on the supply-side included income incentives (II), job title promotion (JTP), and education training (ET). Considering the team collaboration, the income distribution ratio (IDR) was also incorporated into supply-side factors. The contract rate is predicted to increase to 57.8