Table 1.
Descriptive Statistics Before and After DIP Payment Reform Among Inpatients in W and Z Cities
| Before DIP Reform (January–June 2021) | After DIP Reform (January–June 2022) | |||
|---|---|---|---|---|
| W City | Z City | W City | Z City | |
| (1) | (2) | (3) | (4) | |
| Outcome variables | ||||
| Total expenditure per case, mean (SD), RMB | 5,398.51 | 6,137.59 | 5,262.17 | 6,298.58 |
| (6,857.89) | (8,903.13) | (5,978.83) | (8,880.15) | |
| In-hospital mortality rate (%) | 0.14 | 0.17 | 0.09 | 0.13 |
| All-cause readmission rate within 30 days after discharge (%) | 6.03 | 5.44 | 5.66 | 6.81 |
| Proportion of severe patients (%) | 48.18 | 51.89 | 50.59 | 50.00 |
| Related weight per case, mean (SD) | 0.96 | 0.99 | 0.94 | 1.01 |
| (0.80) | (0.88) | (0.70) | (0.94) | |
| Patient characteristics | ||||
| Age, mean (SD), years | 50.81 | 50.64 | 52.03 | 50.61 |
| (22.53) | (23.63) | (21.71) | (23.38) | |
| Female (%) | 53.17 | 51.69 | 52.24 | 52.18 |
| UEBMI (%) | 11.85 | 13.16 | 16.02 | 13.29 |
| Charlson Comorbidity Index, mean (SD) | 0.43 | 0.53 | 0.53 | 0.56 |
| (0.76) | (0.94) | (0.92) | (0.96) | |
| Hospital level (%) | ||||
| Tertiary (NW = 5, NZ = 3) | 40.47 | 39.84 | 52.12 | 38.74 |
| Secondary (NW = 14, NZ = 20) | 59.53 | 60.16 | 47.88 | 61.26 |
| Sample size | 71,297 | 58,455 | 92,139 | 74,421 |
Notes: DIP denoted the diagnosis-intervention packet payment reform. The UEBMI was a basic medical insurance scheme for urban employees. NW and NZ denoted the number of hospitals in cities W and Z, respectively.