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Table 1 Characteristics of the population at birth in small and average for gestational age infants, and risk ratios between groups

From: Prenatal and post-natal cost of small for gestational age infants: a national study

  SGA
N = 84,688
AGA
N = 395,760
Risk Ratio
AGA/SGA
N % N % RR [CI 95%]
Sex      
Male 42,646 50.36 200,653 50.70  
Female 42,042 49.64 195,107 49.30 0.99 [0.97; 1.01]
Gestational age      
<37 weeks 11,097 13.10 22,627 5.72 0.53 [0.52; 0.53]
Delivery      
Caesarean 15,074 17.8 53,428 13.5  
Vaginal delivery 69,614 82.2 342,332 86.5 1.39 [1.35; 1.41]
ICU admission      
YES 18,320 21.63 28,485 7.20 0.31 [0.31; 0.32]
  1. ICU Intensive Care Unit; SGA Small for Gestational Age; AGA Appropriate for Gestational Age