. Author manuscript; available in PMC: 2019 Apr 1.

Published in final edited form as: Arthritis Rheumatol. 2018 Feb 26;70(4):547–554. doi: 10.1002/art.40407

Table 5.

Adjusted outcomes for TKA

	Model 1^‡		Model 2^§		Model 3^**
	NY	ON	NY	ON	NY	ON
In-hospital mortality, % (95% confidence intervals)	0.019 (0.008,0.046)	0.035 (0.018,0.066)	0.028 (0.012,0.067)	0.033 (0.016,0.065)	0.025 (0.010,0.062)	0.027 (0.013,0.055)
Hospital LOS, days, (95% confidence intervals)	3.454 (3.432,3.476)	3.856 (3.827,3.885)	3.474 (3.451,3.498)	3.815 (3.783,3.847)	3.463 (3.434,3.491)	3.690 (3.656,3.723)
30-day readmission, % (95% confidence intervals)	4.136 (3.903,4.383)	3.353 (3.136,3.584)	4.498 (4.23,4.781)	3.498 (3.256,3.757)	4.411 (4.097,4.749)	3.210 (2.971,3.468)
90-day readmission, % (95% confidence intervals)	8.161 (7.73,8.613)	5.989 (5.702,6.290)	8.359 (8.000,8.732)	6.100 (5.783,6.433)	8.950 (8.380,9.556)	5.727 (5.408,6.065)

^‡

Model 1: adjusted for patient age and sex

^§

Model 2: adjusted for Model 1 plus hospital TKA volume

^**

Model 3: adjusted for Model 2 factors plus comorbid conditions