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This article is part of the supplement: International Conference on Prevention & Infection Control (ICPIC 2011)

Open Access Poster presentation

Use of MRSA surveillance data for infection control: individual units rather than entire hospital as the basis for improvement

P Gastmeier1*, F Schwab2, I Chaberny3 and C Geffers1

  • * Corresponding author: P Gastmeier

Author Affiliations

1 Institute of Hygiene and Environmental Medicine, Berlin, Germany

2 CHARITÉ – University Medicine Berlin, Berlin, Germany

3 Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany

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BMC Proceedings 2011, 5(Suppl 6):P13  doi:10.1186/1753-6561-5-S6-P13


The electronic version of this article is the complete one and can be found online at: http://www.biomedcentral.com/1753-6561/5/S6/P13


Published:29 June 2011

© 2011 Gastmeier et al; licensee BioMed Central Ltd.

This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Introduction / objectives

To analyze which surveillance system (a hospital based or a unit based) leads to a greater decrease in incidence density of nosocomial MRSA.

Design

Two cohort studies of surveillance data.

Setting

Two MRSA surveillance components exist within the German national nosocomial infection surveillance system KISS: one for the whole hospital (i.e. only hospital based data and no rates for individual units) and one for ICU-based data (rates for each individual ICU).

Participants

Data from a total of 224 hospitals and 359 ICUs in the period from 2004 to 2009.

Methods

Development over time was described first for both surveillance systems. In a second step only data were analyzed from those hospitals/ICUs with continuous participation for at least four years. Incidence rate ratios (IRR) with 95% confidence intervals were calculated to compare incidence densities between different time intervals.

Results

In the baseline year the mean MRSA incidence density of hospital acquired MRSA cases was 0.25 and the mean incidence density of ICU-acquired MRSA was 1.25 per 1000 patient days. No decrease in hospital-acquired MRSA rates was found in a total of 111 hospitals with continuous participation in the hospital- based system. However, in 159 ICUs with continuous participation in the unit-based system, a significant decrease of 29 % in ICU-acquired MRSA was identified.

Conclusion

A unit-based approach of surveillance and feedback seems to be more successful in decreasing nosocomial MRSA rates, compared to a hospital-based approach.

Disclosure of interest

None declared.