Table 3.

Multivariate model of deep sternal wound infection (N=14,492; AUC=0.731). Log likelihood goodness of fit testing yielded P=0.76 indicating good model fit.

		OR	95% CI	Multivariate model P value
Year
	2003–2004	1
	2005–2006	0.56	(0.34 – 0.93)
	2007–2008	0.49	(0.29 – 0.84)	<0.0001
	2009–2010	0.56	(0.34 – 0.94)
	2011–2012	0.18	(0.08 – 0.41)
	2013–2015	0.12	(0.05 – 0.28)
BMI > 30 kg/m2		1.72	(1.21 – 2.46)	0.003
NYHA Class IV		1.85	(1.08 – 3.18)	0.026
STS DSWI Risk Index (%)
	< 0.5%	1
	0.5–1.0%	1.96	(1.33 – 2.88)	0.0002
	> 1.0%	2.48	(1.51 – 4.10)
Vancomycin Paste Use		1.20	(0.79 – 1.82)	0.40