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Table 3 Variables that retained statistical significance in risk for neonatal sepsis after logistic regression

From: Risk factors and prognosis for neonatal sepsis in southeastern Mexico: analysis of a four-year historic cohort follow-up

Variable Early-onset Late-onset
  RR (95% CI) P RR (95% CI) P
Neonate-related factors
Low birth weight (≤2500 g) 0.91 0.63-1.32 0.642 1.34 0.74-2.42 0.326
Prematurity (≤37 wks) 2.19 1.41-3.40 <0.0001 1.35 0.57-3.18 0.487
Product of multiple pregnancy 1.13 0.64-1.98 0.669 2.5 1.14-4.80 0.019
Abnormal amniotic fluid 1.67 1.25-2.23 0.007 ---- ----- ----
Abnormal umbilical cord 1.21 0.89-1.63 0.207 1.15 0.69-1.92 0.584
Perinatal asphyxia 0.78 0.26-2.32 0.656 5.15 1.92-13.83 0.001
Maternal-related factors
PMR ≥24 h¥ 3.38 1.80-6.32 <0.0001 2.71 0.48-15.30 0.258
Abnormal placenta 1.71 1.16-2.53 0.007 1.17 0.94-3.22 0.078
Medical-care and hospital-evolution derived factors
Mechanical ventilation 1.00 0.90-1.12 0.863 2.71 1.56-4.69 <0.0001
O2 inspiration fraction >60% 3.21 1.95-5.28 <0.0001 2.85 1.57-5.15 0.001
Continuous positive airway pressure 0.87 0.29-2.60 0.804 3.66 1.30-10.27 0.013
Respiratory complication 42.48 25.53-70.67 <0.0001 16.36 3.39-78.91 <0.0001
Surgical procedure required 2.98 0.62-4.37 0.173 28.97 6.99-120.01 <0.0001
Invasive medical procedure required 3.01 2.13-4.26 <0.0001 12.5 6.37-24.56 <0.0001
  1. RR, Relative Rate; 95% CI, 95% Confidence interval; PMR¥, Premature membrane rupture.