Table 4

Logistic Regression Results to Predict Likelihood of Arthroplasty (n = 4276)

Hospital	Characteristic

	Age		≥ 3 Comorbid conditions		Gender

	OR	Estimate (SE)	OR	Estimate (SE)	OR	Estimate (SE)
A	1.6^*	0.490 (0.197)	2.4^*^†	0.86 (0.198)	0.6^*^†	−0.51 (0.233)

B	1.4	0.362 (0.19)	1.5^*	0.38 (0.198)	1.5	0.389 (0.22)

C	1.9^*	0.663 (0.21)	1.3	0.27 (0.21)	1.1	0.129 (0.24)

D	1.2	0.163 (0.158)	1.3	0.26 (0.159)	1.2	0.222 (0.173)

E	1.3	0.265 (0.174)	2.1^*	0.72 (0.175)	1.3	0.24 (0.195)

F	1.2	0.183 (0.259)	1.5	0.39 (0.25)	1.8^*	0.602 (0.28)

G	1.6	0.5 (0.322)	1.0	0.02 (0.33)	3.2^*^†	1.15 (0.364)

H	0.9	−0.143 (0.407)	2.3^*	0.83 (0.425)	0.5	−0.69 (0.457)

I	1.4	0.358 (0.236)	0.9	−0.12 (0.297)	1.1	0.07 (0.25)

J	1.00	−0.02 (0.46)	1.2	0.22 (0.46)	1.0	0.00 (0.51)

Overall	1.36	0.32 (0.065)	1.5	0.428 (0.115)	1.2	0.175 (0.277)

↵* Statistically significant at 0.05 level for each separate regression
↵† Statistically significant at 0.05 level from the overall rate
OR = odds ratio, SE = standard error.