TABLE 4.

Adjusted and unadjusted relative risks

Category	Unadjusted				Adjusteda
	RR	95% CI	P	P for trend	RR	95% CI	P	P for trend
Yr
2005	1.00				1.00
2006	0.89	0.79–1.01	0.08		0.99	0.87–1.12	0.87
2007	0.86	0.75–0.97	0.02		1.08	0.95–1.22	0.25
2008	0.61	0.54–0.70	<0.0001		0.92	0.81–1.05	0.21
2009	0.52	0.46–0.60	<0.0001		0.87	0.76–0.99	0.03
2010	0.54	0.48–0.62	<0.0001		0.93	0.82–1.06	0.29
2011	0.57	0.50–0.64	<0.0001		0.96	0.84–1.09	0.54
2012	0.43	0.37–0.49	<0.0001		0.77	0.67–0.89	0.0004
2013	0.51	0.44–0.59	<0.0001		0.91	0.79–1.04	0.18
2014	0.42	0.36–0.48	<0.0001	<0.0001	0.79	0.69–0.91	0.001	<0.0001
Specimen source
Other	1.00				1.00
Blood	4.08	3.55–4.69	<0.0001		1.94	1.68–2.23	<0.0001
Patient location
CONUS	1.00				1.00
OCONUS	1.29	1.18–1.41	<0.0001		1.39	1.26–1.52	<0.0001
Fermenters vs nonfermenters
Fermenters	1.00				1.00
Nonfermenters	73.07	66.63–80.13	<0.0001		70.71	64.44–77.59	<0.0001
Specimen source/location
Other/CONUS	1.00
Blood/CONUS	1.28	1.16–1.40	<0.0001
Other/OCONUS	3.88	3.34–4.52	<0.0001
Blood/OCONUS	8.42	5.84–12.14	<0.0001

^aThat is, adjusted for calendar year, specimen source, and patient location.