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Int J Med Microbiol. 2013 Dec;303(8):405-9. doi: 10.1016/j.ijmm.2013.05.002. Epub 2013 May 10.

Multidrug-resistant bacteria in geriatric clinics, nursing homes, and ambulant care--prevalence and risk factors.

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Institute of Medical Microbiology and Infection Control, Hospital of Goethe-University, Frankfurt am Main, Germany.


Colonization/infection with multidrug-resistant bacteria (MDRB) such as methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), and extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae, is an increasing problem not only in hospitals but also in long-term care facilities. The aim of this study was to determine the prevalence as well as the risk factors of colonization/infection with MRSA, VRE, and ESBL producing Enterobacteriaceae in geriatric clinics, nursing homes, and ambulant care in Frankfurt am Main, Germany. 288 patients from 2 geriatric clinics (n=46), 8 nursing homes (n=178), and 2 ambulant care facilities (n=64) as well as 64 staff members were screened for MDRB in the time period from October 2006 to May 2007. 58 patients (20.1%) and 4 staff members (6.2%) were colonized with MDRB. Among patients, 27 (9.4%) were colonized with MRSA, 11 (3.8%) were screened positive for VRE, and 25 (8.7%) were found to be colonized with ESBL producing Enterobacteriaceae. Prevalence of MDRB in geriatric clinics, nursing homes, and ambulant care facilities were 32.6%, 18.5%, and 15.6%, respectively. Significant risk factors for MDRB were immobility (OR: 2.7, 95% CI: 1.5-4.9; p=0.002), urinary catheter (OR: 3.1, 95% CI: 1.7-5.9; p<0.001), former hospitalization (OR: 2.1, 95% CI: 1.1-4.0; p=0.033), and wounds/decubiti (OR: 2.3, 95% CI: 1.5-4.9; p=0.03). Finally, the high level of MDRB in geriatric clinics, nursing homes, and ambulant care points to the importance of these institutions as a reservoir for dissemination.


Ambulant care; ESBL; Geriatric clinics; MRSA; Nursing homes; VRE

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