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Table 4 Perinatal outcomes

From: Very advanced maternal age and morbidity in Victoria, Australia: a population based study

  30–34 yrs 45+ yrs  
n % n % OR 95% CI P value
Gestation        
< 31 weeks’ 655 1.4% 5 2.2% 1.84 (0.7, 4.6) 0.2065
32–36 weeks’ 3041 6.1% 33 14.3% 2.61 (1.8, 3.8) <0.001
Birth-weight        
<2,500 g 3042 6.1% 29 12.6% 2.22 (1.5, 3.3) <0.001
> = 4,500 g 948 1.9% <5 1.7% 0.98 (0.3, 2.7) 1
Small for gestational age 3861 7.7% 26 11.3% 1.53 (1.0, 2.3) 0.0404
Perinatal death   6.9/1000 births   13.0/1000 births