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Table 2 Characteristics of mothers, infants, and neighborhoods according to SGA status, singleton births, Montréal, Canada, 1997 to 2001

From: The joint influence of marital status, interpregnancy interval, and neighborhood on small for gestational age birth: a retrospective cohort study

Characteristic Normal growth SGA
  n % n %
Mothers     
   Age     
<20 years 3484 87.8 486 12.2
20–34 years 69497 90.9 6945 9.1
35+ years 16324 91.1 1593 8.9
   Education (years) 89306 14 (4)* 9024 13 (4)*
   Maternal place of birth     
Canadian-born 50209 91.4 4739 8.6
Foreign-born 39097 90.1 4285 9.9
   Marital status     
Married 54087 91.4 5063 8.6
Unmarried 35219 89.9 3961 10.1
Infants     
   IPI category     
   Firstborn 42508 88.9 5321 11.1
   Subsequent born     
Short IPI 8555 92.6 680 7.4
Intermediate IPI 21081 93.4 1487 6.6
Long IPI 17162 91.8 1536 8.2
Neighborhoods     
   Perceived security     
High 18241 92.2 1545 7.8
High-moderate 18905 91.2 1822 8.8
Moderate 20514 90.5 2148 9.5
Low-moderate 16585 91.0 1639 9.0
Low 15061 89.0 1870 11.0
   Proportion foreign-born     
High 18931 89.5 2219 10.5
High-moderate 17200 91.7 1566 8.3
Moderate 17935 91.2 1723 8.8
Low-moderate 17981 91.7 1634 8.3
Low 17259 90.2 1882 9.8
   Total live births 89306 90.8 9024 9.2
  1. * Values represent the mean (standard deviation).