. 2018 Sep 4;320(9):901–910. doi: 10.1001/jama.2018.12345

Table 3. Hospital Characteristics by BPCI Participation, 2011-2015.

	Non-BPCI Hospitals With Nonzero Volume in Non-BPCI markets (n = 1340)	BPCI Participating Hospitals (n = 322)	P Value
Beneficiaries receiving LEJR, No.	753 304	289 900
Quarterly LEJR procedural volume per hospital, median (IQR)	20 (7-44)	35 (17-69)	<.001
Annual admissions, median (IQR)^a
Medicare	3209 (1444-6235)	5912 (3806-9513)	<.001
Total	6796 (2909-13 283)	12 939 (7864-20 845)	<.001
Hospital size, No. of beds, median (IQR)^a	158 (80-278)	267 (160-401)	<.001
Ownership status, No. (%)^a
For-profit	278 (21)	67 (21)	<.001
Not-for-profit	876 (65)	244 (76)
Government	186 (14)	11 (4)
Teaching status, No. (%)^a^,^b
Major	85 (6)	46 (14)	<.001
Minor	561 (42)	196 (61)
None	694 (53)	80 (25)
Urban status, No. (%)^a	964 (72)	306 (95)	<.001
Hospital margin %, median (IQR)^a^,^c	6 (1-12)	7 (2-11)	.95
Joint Commission accreditation, No. (%)^a	1072 (80)	279 (87)	.01
Safety net hospitals, No. (%)^a^,^d	330 (25)	303 (23)	.48
Net patient revenue paid on a shared risk basis, % (SD)^a	1.3 (7.2)	2.5 (9.6)	.06
Complication rate from Hospital Compare, No. (%)^a^,^e
<National rate	32 (2)	12 (4)	<.001
No different than the national rate	1286 (96)	296 (92)
>National rate	22 (2)	14 (5)
Readmission rate from Hospital Compare, No. (%)^a^,^e
<National rate	98 (7)	26 (8)	<.001
No different than the national rate	1142 (85)	239 (74)
>National rate	100 (8)	57 (18)

Abbreviations: BPCI, Bundled Payments for Care Improvement; IQR, interquartile range; LEJR, lower extremity joint replacement; MS-DRG, Medicare Severity-Diagnosis Related Group.

^{^a}

2015 data.

^{^b}

From the American Hospital Association Annual Survey, major teaching hospitals are members of the Council of Teaching Hospitals (COTH), minor teaching hospitals are non-COTH members that had a medical school affiliation reported to the American Medical Association, and nonteaching hospitals are all other institutions.

^{^c}

Hospital margin is a percentage calculated as the difference between total net revenue and total expenses divided by total net revenue.

^{^d}

Safety net hospitals were in the top quartile of disproportionate share payment percentage, using the fiscal year 2017 Centers for Medicare & Medicaid IMPACT file.

^{^e}

The 30-day joint replacement complication and readmissions rate designations as lower than, no different from, or higher than the national rate were drawn for each hospital directly from the Centers for Medicare & Medicaid Hospital Compare website.¹⁵ The method adjusts for patient factors but does not adjust for hospital characteristics.²⁶