Smoking mothers put second child at risk: study
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A large Australian health study has found that women who smoke in their first pregnancy are also putting their second baby at risk of being born small or premature.
Researchers from Sydney's Liverpool Hospital examined the medical records from almost 245,000 mothers who gave birth to two children.
They found women who smoked in the first pregnancy but not the second still had a higher risk of having a pre-term baby.
One fifth of Australian women still smoke while pregnant.
The more women smoked, the more likely they were to have smaller babies or infants prone to becoming sick after birth.
