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Diabetes management at the grass-root level without gatekeeping: exploring the association between primary care
Jiaqian Sun1, Sumit Kane2, Weijun Zhang3
1School of Public Health, NHC Key Laboratory of Health Technology Assessment, Fudan University, 130 Dongan Road, Shanghai, 200032, China.
Background:
In countries without a gatekeeping system, including China, promoting primary healthcare (PHC) utilization can improve system efficiency and reduce healthcare burden. However, evidence on diabetes patients' PHC utilization and its impact on health outcomes remains limited. This study employs continuity of care (COC) to examine care-seeking behavior at PHC institutions in China and assess its association with clinical outcomes and healthcare costs.
Methods:
We conducted a retrospective cohort study in Yuhuan, Zhejiang Province, China, including 3,672 patients newly diagnosed with diabetes between 2016 and 2019. Data from chronic disease management records, follow-up service records, and electronic medical records from 2020 to 2023 were linked. COC was assessed from 2020 to 2022 using standard measures including the Continuity of Care Index (COCI), Usual Provider of Care (UPC), and Sequential Continuity (SECON), as well as PHC-specific measures: the Primary Healthcare Index (PHCI) and a binary indicator for having the primary healthcare institution as the usual provider of care (PHC-UPC). We evaluated clinical outcomes (hospitalization, glycemic control) and healthcare costs in 2023. Logistic and linear regression models were used to assess association, adjusting for patient demographics and clinical characteristics.
Results:
The mean PHCI was 0.73. Higher PHCI was significantly associated with decreased outpatient costs (P < 0.001), decreased inpatient costs (P < 0.001), and a lower likelihood of hospitalization (OR = 0.503, P < 0.001). Similarly, having used a PHC-UPC was associated with reduced outpatient and inpatient costs (P < 0.001) and a lower likelihood of hospitalization (OR = 0.708, P < 0.001). However, among patients with poorly controlled diabetes, neither PHCI nor having used a PHC-UPC showed a positive association with glycemic control (OR = 0.496, P = 0.003; OR = 0.629, P = 0.002).
Conclusions:
Continuity at PHC significantly lowers hospitalization and healthcare costs in China's non-gatekeeping system. However, no significant improvement in glycemic control among poorly controlled diabetes was observed. Strengthening PHC capacity for personalized diabetes management and timely hospital referrals is essential to optimize outcomes.
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