Open AccessRisk Factors of Carbapenem-Resistant Enterobacteriaceae Infection and Colonisation: A Malaysian Tertiary Care Hospital Based Case-Control Study
Author(s) -
Chuan Huan Chuah,
Yasmin Gani,
Benedict Lh Sim,
Suresh Kumar Chidambaram
Publication year - 2021
Publication title -
journal of the royal college of physicians of edinburgh/the journal of the royal college of physicians of edinburgh
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 26
eISSN - 2042-8189
pISSN - 1478-2715
DOI - 10.4997/jrcpe.2021.107
Subject(s) - medicine , multivariate analysis , carbapenem resistant enterobacteriaceae , concomitant , univariate analysis , infection control , case control study , risk factor , colonisation , carbapenem , retrospective cohort study , odds ratio , antibiotics , emergency medicine , enterobacteriaceae , intensive care medicine , microbiology and biotechnology , biology , colonization , biochemistry , escherichia coli , gene
Background Carbapenem-resistant Enterobacteriaceae (CRE) infection has become a major challenge to clinicians. The aim of this study is to identify the risk factors of acquiring CRE to guide more targeted screening for hospital admissions. Methods This is a retrospective case-control study (ratio 1:1) where a patient with CRE infection or colonisation was matched with a control. The control was an individual who tested negative for CRE but was a close contact of a patient testing positive and was admitted at the same time and place. Univariate and multivariate statistical analyses were done. Results The study included 154 patients. The majority of the CRE was Klebsiella species (83%). From univariate analysis, the significant risk factors were having a history of indwelling devices (OR: 2.791; 95% CI: 1.384–5.629), concomitant other MDRO (OR: 2.556; 95% CI: 1.144–5.707) and hospitalisation for more than three weeks (OR: 2.331; 95% CI: 1.163–4.673). Multivariate analysis showed that being unable to ambulate on admission (adjusted OR: 2.345; 95% CI: 1.170–4.699) and antibiotic exposure (adjusted OR: 3.515; 95% CI: 1.377–8.972) were independent predictors. The in-hospital mortality rate of CRE infection was high (64.5%). CRE acquisition resulted in prolonged hospitalisation (median=35 days; P<0.001). Conclusion CRE infection results in high morbidity and mortality. On top of the common risk factors, patients with mobility restriction, prior antibiotic exposures and hospitalisation for more than three weeks should be prioritised in the screening strategy to control the spread of CRE.