Table 7.

Multivariate Logistic Regression Predicting 31- to 90-Day Readmission

	Univariate Model	Multivariate Model	P Value
Age	1.01 (0.99, 1.02)	0.99 (0.99,1.01)	0.797
Female sex	0.89 (0.69, 1.15)	0.81 (0.62,1.04)	0.098
Insurance status
Medicare	2.23 (1.32, 3.75)	2.14 (1.21, 3.81)	0.009
Medicaid	2.01 (0.99, 4.11)	1.92 (0.93, 3.96)	0.076
Private insurance	1.44 (0.78, 2.64)	1.43 (0.78, 2.60)	0.246
Other	REFERENCE
Comorbidity
Deficiency anemia	1.49 (1.11, 1.99)	1.34 (0.99, 1.81)	0.051
Rheumatoid arthritis/collagen vascular diseases	2.98 (1.27, 7.00)	2.99 (1.26, 7.11)	0.013
Coagulopathy	1.72 (1.05, 2.82)	1.52 (0.94, 2.45)	0.089
Any complication	1.36 (1.04, 1.79)	1.30 (0.99, 1.72)	0.059