Table 3.

Difference in Total Performance Score by Hospital Category, Adjusted for Case Mix Index

Hospital Category	Adjusted Mean TPS	Standard Deviation	95% CI for Mean TPS	F-test statistic p-value	Adjusted Mean TPS Difference between healthcare delivery models (95% CI)
POSH				< 0.0001
Yes	75.72	2.07	71.65 to 79.79		27.19	(24.62 to 29.78)
No	48.53	1.15	46.27 to 50.79		−27.19	(−29.77 to −24.62)
CMI adjustment				0.0147
Kaiser Owned				<0.0001
Yes	57.90	2.20	53.02 to 62.78		19.05	(14.73 to 23.37)
No	38.85	1.11	36.68 to 41.01		−19.05	(−23.37 to −14.73)
CMI adjustment				0.0076
USNWR				0.5274
Yes	40.87	3.39	33.58 to 48.16		2.14	(−4.51 to 8.80)
No	38.73	1.13	36.51 to 40.94		−2.14	(−8.80 to 4.51)
CMI adjustment				<0.0001
UHC				< 0.0001
Yes	30.84	1.88	27.15 to 34.54		−6.42	(−8.88 to −3.97)
No	37.27	1.14	35.02 to 39.52		6.42	(3.97 to 8.88)
CMI adjustment				< 0.0001
ACO Hospital				0.6935
Yes	38.21	1.58	35.09 to 41.32		−0.45	(−2.70 to 1.80)
No	38.66	1.11	36.46 to 40.85		0.45	(−1.80 to 2.70)
CMI adjustment				0.0054

TPS- Total Performance Score; CI- Confidence interval; POSH- Physician-owned surgical hospital; CMI- case mix index; USNWR- US News and World Report; UHC- University HealthSystem Consortium; ACO- Accountable Care Organization