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Volume 11, Number 6—June 2005


Global Spread of Vancomycin-resistant Enterococcus faecium from Distinct Nosocomial Genetic Complex

Rob J.L. Willems*Comments to Author , Janetta Top*, Marga van Santen†, D. Ashley Robinson‡, Teresa M. Coque§, Fernando Baquero§, Hajo Grundmann†, and Marc J.M. Bonten*
Author affiliations: *University Medical Center Utrecht, Utrecht, the Netherlands; †National Institute for Public Health and the Environment, Bilthoven, the Netherlands,; ‡New York Medical College, Valhalla, New York, USA; §Hospital Ramon y Cajal, Madrid, Spain

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Table 2

Parameter estimates by using a logistic regression model*

Regression lines
Parameter estimates
p value
Complex-17 crude –4.44 0 0 0 1.6 0.000
Corrected for amp –6.61 5.38 0 0 1 0.000
Corrected for PAI –6.29 5.08 1.06 0 0.84 0.038
Corrected for gly –6.07 5.12 1.01 –0.45 0.83 0.316

*Amp, ampicillin resistance; PAI, presence of the Enterococcus faecium pathogenicity island; gly, glycopeptide resistance; epi, epidemiologic source (animal surveillance, community surveillance, hospital surveillance, clinical sample, hospital outbreak).

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