Impact of the Medicare hospital readmissions reduction program on vulnerable populations

Table 1 DD approach illustration with Medicare AMI patients as the treatment group and Medicare GI patients as the control group

Condition/Year	Before HRRP	After HRRP	Difference Over Time
Medicare AMI	0.174	0.156	−0.018***
	(0.0009)	(0.0007)	(0.001)
	N = 184,242	N = 302,294	N = 486,536
Medicare GI	0.133	0.128	−0.005***
	(0.0005)	(0.0004)	(0.0006)
	N = 520,669	N = 799,687	N = 1,320,356
Difference over conditions	0.041***	0.027***
	(0.001)	(0.001)
	N = 704,911	N = 1,101,981
Difference-in-Difference	−0.013***
	(0.001)
	N = 1,806,892

ISSN: 1472-6963