Mothers who smoke any number of cigarettes – even one a day – during their pregnancy more than double their danger of seeing their infant choke before their first birthday , allot to fresh inquiry published inPediatrics .

Women smoking an average of between one and 20 cigarettes a mean solar day increase the odds by 0.07 with each cigarette smoked – but even women who smoke before their pregnancy saw an increase risk in their minor dying from sudden unexpected babe death ( SUID ) – an unaccountable expiry of an otherwise healthy baby less than a year old .

To translate how SUID last refer to maternal cigarette use , researchers analyzed datum pull together by the Centers for Disease Control and Prevention on smoking habits in pregnant woman who had given birth between 2007 and 2011 . Of the 20 million resilient births collect in the data solidifying , just over 19,000 were impute to SUIDS or consort inadvertent suffocation or strangulation while asleep .

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woman who trim back back on smoking by the third semester saw a 12 percentage reduction in risk , while those who successfully quit were associate with a 23 percent reduce risk . On the other mitt , mother who fume three month before getting pregnant but cease in the first trimester still had a high risk of SUID when compared to non - smoker .

" The most important takeaway is for women to understand that resign smoking before and during pregnancy by far results in the sterling reducing in SUID risk , " said lede study writer Tatiana Anderson in astatement . " For significant women unable to quit entirely , every cigarette they can winnow out will reduce the odds of their child give out suddenly and unexpectedly from SUID . "

Though the writer note their study is limited to “ conservative smoke estimates ” because their data point Seth does not include environmental smoke exposure during pregnancy or postpartum , including fathers who smoke , they affirm that maternal smoking has been linked to previous decease in infants . In fact , some studies have depict that smoking is the “ strongest antepartum modifiable endangerment factor for SIDS in industrialized nations , ” according to the written report .

" With this entropy , doctors can better rede meaning women about their smoking habits , jazz that the number of cigarettes smoked day by day during gestation importantly bear upon the risk for SUID , " read Anderson . " Similar to public wellness safari that educate parents about the importance of infant quietus positioning , direct to a 50 % decrease in sudden infant expiry syndrome ( SIDS ) rate , we hope advising woman about this peril will leave in less babies dying from these tragical crusade . "