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Table 2 Relationship between prevalence of external birth defects and selected live births characteristics

From: External birth defects in southern Vietnam: a population-based study at the grassroots level of health care in Binh Thuan province

Live births characteristics External birth defects n = 84 (%) Prevalence 1,000 live births PR 95% CI P value
Birth weight      
  < 2500g 17 (20.2) 23.55 4.75 2.81 – 8.03 <0.001
  ≥ 2500g 67 (79.8) 5.06 1 -  
Gestational age      
  < 37 weeks 13 (15.5) 11.61 2.09 1.17 – 3.27 0.012
  ≥ 37 weeks 71 (84.5) 5.57 1 -  
AFGAR score at 5 minutes     
  < 7 21 (25.0) 23.60 4.89 2.95 – 7.87 <0.001
  ≥ 7  63 (75.0) 4.82 1 -