Table 2.

Risk adjusted* mortality and readmission rates at 30 days for accredited hospitals versus state survey hospitals, by selected medical or surgical conditions

	% (95% CI)			P§
	Accredited hospitals†	State survey hospitals‡	Difference
30 day mortality
Medical conditions	10.2 (10.11 to 10.24)	10.6 (10.2 to 10.9)	−0.4 (−0.8 to −0.1)	0.03
Surgical conditions	2.4 (2.33 to 2.42)	2.4 (2.1 to 2.7)	0.001 (−0.3 to 0.3)	0.99
30 day readmission
Medical conditions	22.4 (22.3 to 22.5)	23.2 (22.8 to 23.7)	−0.8 (−1.3 to −0.4)	<0.001
Surgical conditions	15.9 (15.6 to 16.1)	15.6 (14.2 to 17.0)	0.3 (−1.2 to 1.6)	0.75

^*Adjusted for patient and hospital characteristics and hospital referral region fixed effects.

^†Hospitals accredited by The Joint Commission and other independent accrediting organizations.

^‡Hospitals reviewed by a state survey agency.

^§P<0.0125 was considered significant.