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Bilavsky, E.; Temkin, E.; Lerman, Y.; Rabinovich, A.; Salomon, J.; Lawrence, C.; Rossini, A.; Salvia, A.; Samso, J.V.; Fierro, J.; Paul, M.; Hart, J.; Gniadkowski, M.; Hochman, M.; Kazma, M.; Klein, A.; Adler, A.; Schwaber, M.J.; Carmeli, Y.
Clinical microbiology and infection, November 2014, Letnik: 20, Številka: 11Journal Article
Patients newly admitted to rehabilitation centres are at high risk of colonization with multidrug-resistant bacteria because many of them have experienced prolonged stays in other healthcare settings and have had high exposure to antibiotics. We conducted a prospective study to determine the prevalence of and risk factors for colonization with extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE) in this population. Subjects were screened by rectal swab for ESBL-PE within 2 days of admission. Swabs were plated on chromagar ESBL plates and the presence of ESBL was verified by a central laboratory. A multilevel mixed effects model was used to identify risk factors for ESBL-PE colonization. Of 2873 patients screened, 748 (26.0%) were positive for ESBL-PE. The variables identified as independently associated with ESBL-PE colonization were: recent stay in an acute-care hospital for over 2 weeks (OR = 1.34; 95% CI, 1.12, 1.6), history of colonization with ESBL-PE (OR = 2.97; 95% CI, 1.99, 4.43), unconsciousness on admission (OR = 2.59; 95% CI, 1.55, 4.34), surgery or invasive procedure in the past year (OR = 1.49; 95% CI, 1.2, 1.86) and antibiotic treatment in the past month (OR = 1.80; 95% CI, 1.45, 2.22). The predictive accuracy of the model was low (area under the ROC curve 0.656). These results indicate that ESBL-PE colonization is common upon admission to rehabilitation centres. Some risk factors for ESBL-PE colonization are similar to those described previously; however, newly identified factors may be specific to rehabilitation populations. The high prevalence and low ability to stratify by risk factors may guide infection control and empirical treatment strategies in rehabilitation settings.
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