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Volume 13, Number 12—December 2007
Research

Emergence of Methicillin-Resistant Staphylococcus aureus of Animal Origin in Humans

Inge van Loo*1, Xander Huijsdens†1, Edine Tiemersma†, Albert J. de Neeling†, Nienke van de Sande-Bruinsma†, Desiree Beaujean†, Andreas Voss‡, and Jan Kluytmans§¶Comments to Author 
Author affiliations: *Elisabeth Hospital, Tilburg, the Netherlands; †National Institute for Public Health and the Environment, Bilthoven, the Netherlands; ‡Wilhelmina Hospital, Nijmegen, the Netherlands; §Amphia Hospital, Breda, the Netherlands; ¶VUmc Medical Center, Amsterdam, the Netherlands;

Main Article

Table 1

Results of univariate analysis of case-control study, the Netherlands, February 2007*

Variable Cases
 Controls
 Odds ratio 
(95% CI)† p value
No. No. (%) or mean ± SD with variable No. No. (%) or mean ± SD with variable
Gender (male) 35 20 (57) 76 36 (47) 1.5 (0.7–3.3) 0.34
Age, y 35 42.7 ± 25.3 76 47.3 ± 24.7 0.37
Residence 35 75
Rural area 14 (40) 6 (8) 7.7 (2.6–22.7)§ <0.01
Urban area 20 (57) 66 (85)
Foreign country
1 (3)
3 (4)
Contact with pigs 29 11 (38) 63 3 (5) 12.2 (3.1–48.6) <0.01
Contact with cattle 29 7 (24) 63 1 (2) 19.7 (2.3–169.5) <0.01
Unexpected MRSA
 35
 27 (77)
76
 34 (45)
 4.2 (1.7–10.4)
 <0.01
Probable source 35 76
Healthcare 5 (14) 39 (51) 0.01
Foreign country 3 (9) 5 (7)
Other 12 (34) 10 (13)
Unknown
15 (43)
22 (29)
Active infection 35 19 (54) 76 29 (38) 1.9 (0.9–4.3) 0.11
Skin/soft tissue 10 (56) 24 (83) 0.3 (0.1–1.0) 0.05
Airways 3 (17) 0
Other 6 (28) 5 (17)
Hospital admission 35 17 (49) 76 24 (32) 2.0 (0.9–4.6) 0.08
Hospital stay, d 16 18.9 ± 20.2 22 23.5 ± 30.9 0.60

*SD, standard deviation; CI, confidence interval; No., number of cases or controls for whom data are available.
†Odds ratio was determined for rural area relative to urban area.

Main Article

1These authors contributed equally to this article.

Page created: July 06, 2010
Page updated: July 06, 2010
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