Table 1.
Variables name and variable measurement.
Table 2.
Descriptive statistics of patient characteristics and outcome variables before, Phase I and Phase II implementation of DRG.
Table 3.
Interrupted time series (ITS) analyses for total hospital costs, patient cost-sharing, patient sharing ratio, length of stay and 30-day readmission rate of hospitalized patients before and after the DRG.
Fig 1.
Monthly trends in total hospital costs, patient cost-sharing, patient sharing ratio, length of stay and 30-day readmission rate.
Notes: The first dashed line represents the initial policy shock (implementation of the DRG payment reform in January 2019), while the second dashed line indicates the second policy shock (a hypothetical intervention assumed for further observation of outcome changes). The red trend line is derived from segmented regression predictions of the time series model. Outcomes were adjusted for gender, age, insurance type, Charlson Comorbidity Index, hospital level, hospital ownership and seasonality.