Table 2.

- Results of univariate logistic analysis of predictors for EONS in preterm infants.

Variable	Odds ratio (95% CI)	β oefficient	P-value
Gender	0.982 (0.518, 1.863)	-0.018	0.957
Multiple gestation birth	2.252 (1.049, 4.836)	0.812	0.037
Natural delivery or cesarean section	2.592 (1.218, 5.517)	0.953	0.013
Gestational age	0.640 (0.535, 0.765)	-0.447	<0.001
Age of mother	1.030 (0.951, 1.115)	0.03	0.465
Birth weight	0.998 (0.997, 0.999)	-0.002	<0.001
Apgar score at 1 min	0.397 (0.292, 0.539)	-0.924	<0.001
Apgar score at 5 min	0.060 (0.017, 0.210)	-2.807	<0.001
WBC count	0.956 (0.897, 1.019)	-0.045	0.165
NEU count	1.016 (0.947, 1.091)	0.016	0.653
LYM count	0.516 (0.388, 0.687)	-0.662	<0.001
N/L	1.334 (1.100, 1.618)	0.288	0.003
PLT count	0.981 (0.974, 0.988)	-0.019	<0.001
CRP level	1.724 (1.236, 2.405)	0.545	0.001
PCT level	21.619 (5.743, 81.383)	3.074	<0.001
IL-6 level	1.065 (1.032, 1.099)	0.063	<0.001
RET count	0.999 (0.994, 1.003)	-0.001	0.532

CI: confidence interval, EONS: early-onset neonatal sepsis, BW: birth weight, WBC: white blood cell, NEU: neutrophil, LYM: lymphocyte, N/L: neutrophil-to-lymphocyte ratio, PLT: platelet, CRP: C-reactive protein, PCT: procalcitonin, IL-6: interleukin-6, RET: reticulocyte