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Table 1 Parental smoking prevalence rates at different times over the childbearing period

From: An investigation of the smoking behaviours of parents before, during and after the birth of their children in Taiwan

  Smoking prevalence rate
  Mothers Fathers
Period Smokers % Smokers %
First child N = 3,109 N = 3,109
   In the six months right before this pregnancy 129 4.15 1862 59.89
   During this pregnancy 103 3.31 1844 59.31
   In the child's infancy 122 3.92 1845 59.34
Second child N = 2,591 N = 2,591
   In the six months right before this pregnancy 90 3.47 1548 59.75
   During this pregnancy 78 3.01 1539 59.40
   In the child's infancy 94 3.63 1546 59.67
Third child or later N = 1,072 N = 1,071
   In the six months right before this pregnancy 44 4.10 692 64.61
   During this pregnancy 37 3.45 687 64.15
   In the child's infancy 44 4.10 687 64.15