Skip to main content

Table 2 Risk factors for morbidity in preterm newborns

From: The effect of IVF pregnancies on mortality and morbidity in tertiary unit

  Surfactant administration Necessitating mechanical ventilation PDA IVH
Independent variables P value OR (%95CI) P value OR (%95CI) P value OR (%95CI) P value OR (%95CI)
Constant <0.001   <0.001   <0.001   <0.001  
IVF 0.2 1.02 (0.6-1.6) 0.023 2.1 (1.1-4.2) 0.12 2.02 (0.83-4.91) 0.21 1.65 (0.75-3.63)
Gestational age <0.001 0.76 (0.68-0.82) 0.005 0.87 (0.81-0.94) <0.001 0.67 (0.6-0.73) <0.001 0.72 (0.65-0.79)
SGA 0.30 0.6 (1.2-1.5) 0.63 0.9 (0.4-1.92) 0.62 1.2 (0.49-3.14) 0.062 2.1 (0.97-4.8).
pPROM 0.71 087 (0.42-1.81) 0.81 1.07 (0.58-1.97) 0.31 0.66 (0.29-1.51) 0.41 0.75 (0.36-1.5)
Preeclampsia 0.1 0.76 (0.45-1.2) 0.86 0.95 (0.6-1.98) 0.23 1.6 (0.8-3.1) 0.057 0.44 (0.2-0.99)
5-minute Apgar score 0.81 1.04 (0.98-1.1) 0.011 0.93 (0.88-0.98) 0.35 1.03 (0.9-1.12) 0.67 1.02 (0.95-1.09)
Duration of surfactant administration    <0.001 1.08 (1.05-1.11) 0.31 1.01 (0.98-1.03) 0.095 1.02 (1.004-1.05)
Multiple gestation 0.33 0.7 (0.4-138) 0.4 0.82 (0.51-13) 0.45 0.67 (0.3-1.5) 0.66 1.2 (0.5-2.2)
  1. Binary (enter) logistic regression analysis was used.
  2. Dependent variable: surfactant administration, necessitating mechanical ventilation, PDA, IVH.
  3. Independent variables: IVF, gestational age, SGA, pPROM, preclampcia, Apgar score at 5 minutes, duration of surfactant administration, multiple gestations.
  4. IVF, in vitro fertilization; IVH, intraventricular hemorrhage; pPROM, preterm premature rupture of membrane; SGA, small for gestational age.