Table 1.

Sample Size and Characteristics for Patients with Each HRRP Condition Pooled across the Study Period (2011–2013)

	AMI	CHF	PN	COPD	THKA	CABG
Hospitals, N	424	501	502	501	431	171
Patients, n	137,591	305,919	230,659	215,381	217,909	55,087
No. of readmissions	26,077	67,176	43,074	40,439	16,282	10,380
RSRRs (%)a, median (range)	18.9 (13.4–33.5)	21.7 (16.1–36.2)	18.4 (12.4–34.8)	18.7 (13.4–29.8)	7.1 (3.3–45.0)	18.8 (11.4–47.1)
Patient characteristics
Male, %	52.7	46.6	45.9	40.8	36.7	70.0
Age, mean (SD)	78.6 (8.5)	81.1 (8.3)	80.3 (8.5)	77.2 (7.8)	74.0 (6.2)	74.4 (6.2)
Race, %
White	80.1	76.4	81.6	79.4	87.5	83.8
Black	6.5	10.6	6.4	7.6	4.1	3.9
Hispanic	8.4	8.9	8.2	9.8	5.5	6.1
Other	5.0	4.1	3.9	3.2	3.0	6.1
Dual eligible, %	8.5	11.4	12.8	13.1	3.2	4.7
Median income, %
4th Quartile—Highest	21.3	21.3	22.3	18.5	25.0	24.0
3rd Quartile	24.7	24.8	25.3	24.3	27.1	26.1
2nd Quartile	27.3	26.1	26.7	27.5	27.2	27.0
1st Quartile—Lowest	26.7	27.8	25.7	29.8	20.7	22.8
Hospital characteristics
Teaching status, %
Major	24.1	20.9	17.2	15.5	16.3	31.9
Minor	21.9	20.8	19.6	17.7	25.7	25.6
Nonteaching	54.1	58.3	63.2	66.9	58.0	42.5
Bed size, %
300+	63.5	55.3	49.4	48.5	52.2	78.0
100–300	34.6	39.4	42.8	44.7	40.5	21.9
<100	2.0	5.2	7.9	6.8	7.3	0.2
Safety net, %	24.8	25.7	22.7	24.5	16.3	24.2
Ownership status, %
For‐profit	18.8	18.1	16.5	21.6	17.3	16.3
Not‐for‐profit	71.7	73.0	74.4	69.5	72.5	75.1
Public	9.5	9.0	9.1	8.9	10.2	8.6
Rural location, %	5.7	7.4	10.0	6.5	5.8	2.1

^aAdjusted for patient comorbidities outlined by CMS.