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Table 3 Distribution of all births and births of babies with DS by year, hospital category, marital status, parity and mother's region of birth

From: Health behaviour modelling for prenatal diagnosis in Australia: a geodemographic framework for health service utilisation and policy development

  1998 1997–1999 2002 2000–2002
  Births (%) DS Births (%) Births (%) DS births (%)
  N = 61 080 N = 166 N = 61 883 N = 180
Marital status
No partner 12.3 7.8 12.5 12.8
Married or de facto 87.6 92.2 87.3 86.7
Unknown 0.1 0.0 0.1 0.5
  *p = 0.08   *p = 0.90  
Parity
Primigravid 40.2 28.3 42.0 29.4
Multigravid 59.8 71.7 58.0 70.6
  *p < 0.01   *p < 0.001  
Region of mother's birth
Australia 76.1 75.3 76.3 71.7
Overseas 23.7 24.7 23.5 28.3
Unknown 0.2 0.0 0.2 0.0
  *p = 0.81   *p = 0.15  
Hospital category
Public 74.3 73.5 68.1 75.6
Private 25.7 26.5 31.9 24.4
  *p = 0.81   *p = 0.03  
Region of mother's residence
Rural 27.7 25.3 26.3 32.8
Metropolitan 72.3 74.7 73.7 67.2
  *p = 0.49   *p = 0.05  
  1. * p value for the difference between the proportion of babies born with DS and all births