Newly identified risk factors for MRSA carriage in The Netherlands

W. S. N. Lekkerkerk, A. Haenen, M. A. B. van der Sande, T. Leenstra, S. de Greeff, A. Timen, A. Tjon-a-Tsien, J. H. Richardus, N. van de Sande-Bruinsma, M. C. Vos

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Objectives

To elucidate new risk factors for MRSA carriers without known risk factors (MRSA of unknown origin; MUO). These MUO carriers are neither pre-emptively screened nor isolated as normally dictated by the Dutch Search & Destroy policy, thus resulting in policy failure.

Methods

We performed a prospective case control study to determine risk factors for MUO acquisition/carriage (Dutch Trial Register: NTR2041).

Cases were MUO carriers reported by participating medical microbiological laboratories to the RIVM from September 1 st 2011 until September 1 st 2013. Controls were randomly selected from the community during this period.

Results

Significant risk factors for MUO in logistic multivariate analysis were antibiotic use in the last twelve months, aOR 8.1 (5.6 - 11.7), screened as contact in a contact tracing but not detected as a MRSA carrier at that time, aOR 4.3 (2.1 - 8.8), having at least one foreign parent, aOR 2.4 (1.4 - 3.9) and receiving ambulatory care, aOR 2.3 (1.4 - 3.7). Our found risk factors explained 83% of the MUO carriage.

Conclusions

Identifying new risk factors for MRSA carriers remains crucial for countries that apply a targeted screening approach as a Search and Destroy policy or as vertical infection prevention measure.

TaalEngels
Artikel nummer0188502
TijdschriftPLoS ONE
Volume12
Exemplaarnummer11
Aantal pagina's12
ISSN1932-6203
DOI's
StatusGepubliceerd - 2017

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