CI	confidence interval;
CSF	cerebrospinal fluid;
CVC	central venous catheter;
CGMH	Chang Gung Memorial Hospital;
EOD	early-onset disease;
ESBL	extended-spectrum β-lactamase;
GNB	gram-negative bacteremia;
GBS	Group B streptococcus;
LOD	late-onset disease;
NTISS	Neonatal Therapeutic Intervention Scoring System;
OR	odds ratio;
TPN	total parenteral nutrition.