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May 8, 2026Frontiers in Public HealthOpen Access

The impact of DIP payment reform on hospitalization costs and equity in type 2 diabetes mellitus patients: evidence from a pilot city in Central China

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Authors

YSYiming ShengZhejiang Chinese Medical UniversityTSTing SunZhejiang Chinese Medical University万万路遇Zhejiang Chinese Medical University

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Overview

Randomized trial shows reduced hospitalization costs in type 2 diabetes patients, indicating mixed implications for equity.

Key Points

  • This research aims to evaluate the effects of DIP payment reform on hospitalization costs and equity for type 2 diabetes mellitus patients.
  • Conducted an interrupted time series analysis using monthly medical insurance claims data from 45,900 T2DM inpatients.
  • Analyzed data from January 2020 to December 2023 before and after the January 2021 DIP reform implementation.
  • Compared outcomes between different insurance types (UEBMI vs. URRBMI) and hospital types (TCM vs. general hospitals).
  • DIP reform significantly reduced total hospitalization costs and length of stay for T2DM patients.
  • Out-of-pocket ratios decreased for UEBMI enrollees but increased for URRBMI patients and TCM hospital patients.
  • Financial equity worsened for vulnerable subgroups despite overall improvements in hospitalization costs.

Cite This Study

Sheng et al. (2026) studied this question.

synapsesocial.com/papers/69fd7d4abfa21ec5bbf05d2fhttps://doi.org/10.3389/fpubh.2026.1775557
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