Table 3.

Virulence factors of German MRSA isolates from 2004 to 2005 and 2010 to 2011

Virulence factor	% (no.) of MRSA isolates froma:		OR (95% CI)	P
	2004–2005	2010–2011
lukS-PV/lukF-PV	1.0 (16)	2.7 (44)	2.80 (1.54–5.34)	<0.0005
tst	9.6 (154)	0.9 (14)	0.08 (0.04–0.14)	<0.0005
sea	13.6 (218)	6.6 (105)	0.45 (0.35–0.57)	<0.0005
seb	0.5 (8)	0.4 (7)	0.88 (0.27–2.77)	0.8
sec	13.3 (213)	20.1 (322)	1.64 (1.35–1.99)	<0.0005
sed	56.2 (901)	49.9 (800)	0.78 (0.67–0.9)	<0.0005
seg	88.5 (1,419)	85.0 (1,363)	0.74 (0.60–0.91)	0.004
seh	0.3 (5)	0.7 (11)	2.21 (0.71–8.13)	0.13
sei	90.2 (1,447)	85.2 (1,366)	0.63 (0.50–0.78)	<0.0005
sej	45.0 (721)	47.5 (762)	1.11 (0.96–1.28)	0.14
eta	0.4 (6)	0 (0)	0 (0–0.85)	0.03
etb	0.1 (2)	0 (0)	0 (0–5.33)	0.5
etd	1.0 (16)	0.5 (8)	0.5 (0.18–1.24)	0.1
edin-A	0 (0)	0.06 (1)	Infb (0.03–Inf)	0.5
edin-B	0.9 (14)	0.5 (8)	0.57 (0.21–1.46)	0.2
hlg	99.8 (1,600)	100 (1,603)	Inf (0.66–Inf)	0.13

^aPercentages are given as relation to the respective evaluable questionnaire data.

^bInf, infinity.