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Table 5 Variables that retained statistical significance for mortality in neonates with sepsis after Cox regression model analysis

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

Variable HR 95% CI P
Neonate-related    
Prematurity (≤37 wks) 1.08 1.03-1.14 0.02
Low birth weight (≤2500 g) 1.04 1.01-1.08 0.01
Perinatal asphyxia 2.96 1.43-6.15 0.003
Apgar score ≤5 1.40 1.19-1.76 0.004
Clinical course- and medical care-related
Mechanical ventilation required 1.60 1.19-2.40 0.001
Surgical procedure required 2.85 1.49-5.46 0.002
Invasive medical procedure required 2.07 1.63-2.62 <0.0001
  1. HR, Hazard ratio; 95% CI, 95% Confidence interval.