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. Author manuscript; available in PMC: 2013 Apr 6.
Published in final edited form as: J Am Coll Surg. 2008 Jun 26;207(3):326–335. doi: 10.1016/j.jamcollsurg.2008.04.021

Table 4.

Multivariate Logistic Regression Model for Developing Breast Surgical Site Infectiona

Risk Factor Adjusted Odds Ratios (95% CI) p
Breast implant/expander 5.3 (2.5,11.1) <.001
Sub-optimal prophylactic antibiotic dosing 5.1 (2.5,10.2) <.001
Transfusion 3.4 (1.3,9.0) .012
Mastectomy 3.3 (1.4,7.7) .007
Chest irradiation prior to surgery 2.8 (1.2,6.5) .013
Recent or current smoking 2.1 (0.9,4.9) .080
Local infiltration of anesthetic agent 0.4 (0.1,0.9) .033
a

The c statistic for the model = .782 The Hosmer and Lemeshow goodness of fitness chi-square p = .749 (7 df), and the Nagelkerke R2 = .249.