Additional file 1 of Readmissions performance and penalty experience of safety-net hospitals under Medicare���s Hospital Readmissions Reduction Program

Additional file 1: Table 1. Data collection and reporting dates for 30-day risk adjusted readmissions. Table 2. Validity of difference-in-differences model estimates of change in 30-day readmissions associated with HRRP: Parallel trends test. Table 3. Difference-in-differences model estimates of change in 30-day readmissions associated with HRRP: Main model estimates. Table 4. Sensitivity Analysis: Difference-in-difference model estimates of change in 30-day readmission rates using alternative definition of safety-net hospitals using Medicaid share inpatient days. Table 5. Sensitivity Analysis: Difference-in-difference model estimates of change in 30-day readmission rates using hospital fixed effects specification. Figure 3. Distribution of number of years of penalty under HRRP by safety-net status, 2013-2016.