Table 2: Discontinuity Regression by Type of Readmission and Hospital Type.

Coefficient for discontinuities and their 95% confidence intervals for local polynomial regression with a cut point at post-discharge day 30. P-values assess the null hypothesis that there are no changes across the 30-day threshold.

	Change across day 30
	Acute myocardial infarction	Heart failure	Pneumonia
By Readmission Type
All cause	−0.011 (−0.058, 0.010); P = 0.17	0.007 (−0.022, 0.029); P = 0.82	0.005 (−0.010, 0.025); P = 0.38
Cardiovascular	−0.009 (−0.036, 0.015); P = 0.41	−0.001 (−0.023, 0.016); P = 0.76	0.002 (−0.003, 0.013), P = 0.21
Non-cardiovascular	0.012 (−0.022, 0.031); P = 0.73	0.007 (−0.014, 0.022); P = 0.64	0.000 (−0.015, 0.017); P = 0.90
Same as index condition	−0.002 (−0.011, 0.013); P = 0.91	0.006 (−0.008, 0.024); P = 0.32	−0.003 (−0.012, 0.007); P = 0.64
By Hospital Penalty Status in 2013 (Outcomes in 2013-2016)
Penalty hospital	−0.014 (−0.106, 0.054); P = 0.52	0.024 (−0.016, 0.074); P = 0.20	0.026 (−0.001, 0.064); 0.05
Non-penalty hospital	−0.090 (−0.0181, 0.017): P = 0.10	−0.066 (−0.192, 0.014); P = 0.09	0.039 (−0.022, 0.107); P = 0.20
By Hospital DSH Status
DSH hospital	−0.011 (−0.064, 0.014); P = 0.21	0.007 (−0.021, 0.035); P = 0.64	0.009 (−0.006, 0.031); P = 0.18
Non-DSH hospital	−0.010 (−0.091, 0.049); 0.56	0.008 (−0.060, 0.045); 0.79	−0.006 (−0.046, 0.035); 0.79