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The impact of diagnosis-intervention packet (DIP) payment on cost structure of inpatient care—Evidence from a tertiary hospital in China

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  • Chenxuan Zhu
  • Zimeng Li
  • Fanyu Lin
  • Lijuan Huang
  • Keyao Cao
  • Yuxin Xiao
  • Jianchen Yang
  • Juan Zhu
  • Haoye Li
  • Wei Li

Abstract

Background: Since 2020, China has implemented DIP (Diagnosis-Intervention Packet) payment reform to control medical costs and reduce patient financial burden. The reform was piloted in a representative tertiary public hospital within a provincial DIP pilot city. Methods: The study used hospital settlement and medication records from January 2019 to June 2023. Interrupted time series analysis (ITSA) and structural change degree (SCD) were applied to evaluate the impact of DIP reform on weekly per capita costs and cost structures for surgical and non-surgical groups. Synergistic effects of health system reforms were also assessed. Results: From January 2019 to June 2023, total costs for surgical and non-surgical groups decreased by 3.42% and 1.25%, respectively. Drug and surgical costs declined significantly (p

Suggested Citation

  • Chenxuan Zhu & Zimeng Li & Fanyu Lin & Lijuan Huang & Keyao Cao & Yuxin Xiao & Jianchen Yang & Juan Zhu & Haoye Li & Wei Li, 2025. "The impact of diagnosis-intervention packet (DIP) payment on cost structure of inpatient care—Evidence from a tertiary hospital in China," PLOS ONE, Public Library of Science, vol. 20(11), pages 1-19, November.
    • Handle: RePEc:plo:pone00:0336584
    DOI: 10.1371/journal.pone.0336584
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