Research Article

Risk of Multidrug Resistant Bacteria Acquisition in Patients with Declared β-Lactam Allergy during Hospitalization in Intensive Care Unit: A Retrospective Cohort Study (2007-2018)

Table 2

Multivariate analysis for factors associated with allergy to β-lactams.

ParameterRR (95% CI) value

Female gender0.4 (0.3-0.6)<0.001
ESBL strains at admission1.7 (0.4-10.3)0.475
ESBL strains at discharge0.9 (0.2-2.75)0.573

CI: confidence interval; ESBL: extended spectrum β-lactamase; RR: relative risk.