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Table 2 Odds ratio for risk factors of Retinopathy of Prematurity (ROP).

From: Retinopathy of prematurity and risk factors: a prospective cohort study

   Full Model Reduced Model
   n = 570 n = 570
   Odds-Ratio 95% CI Odds-Ratio 95% CI
Gestational age >28 weeks >28 weeks 1 - 1  
  26–28 weeks 4.12 1.05–16.11 3.19 0.81–12.55
  ≤ 25 weeks 11.27 2.61–48.66 8.49 2.0–35.94
Race Caucasian 1 -   
  Other 0.22 0.03–2.0   
  African American 0.18 0.05–0.68   
Gender Boys 1 -   
  Girls 0.71 0.33–1.52   
Antenatal steroids No 1 -   
  0.5 course 0.78 0.27–2.28   
  1 course 0.50 0.17–1.26   
  2 courses 0.52 0.14–1.91   
  ≥ 3 courses 0.17 0.02–1.49   
Respiratory distress syndrome No 1 -   
  Yes 0.96 0.39–2.37   
Ventilation No 1 - 1  
  1 week 2.15 0.2–22.58 2.3 0.23–23.35
  1 – 2 weeks 3.45 0.30–39.91 4.57 0.40–51.63
  > 2 weeks 8.27 0.86–79.74 9.02 0.96–85.0
Postnatal steroids No 1 - 1  
  Yes 2.69 1.05–6.89 2.91 1.17–7.28
Oxygen for 36 weeks No 1 -   
  Yes 1.29 0.59–2.87