Results
The ESBL-E vaginal colonization rate was higher in period 2, which was
attributed to a significantly higher proportion of ESBL-producingEscherichia coli . Cerclage (odds ratio [OR]: 3.248; 95%
confidence interval [CI]: 1.744–6.049) and prior antibiotic
treatment (OR: 3.044; 95% CI: 1.713–5.410) were found as independent
risk factors for ESBL-E vaginal colonization. Earlier gestational age at
delivery, and higher proven early-onset neonatal sepsis (EONS) rate were
observed in the ESBL-E-positive group.