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Smoking During Labour

Louis G. Latulippe, Sylvie Marcoux, Jacqueline Fabia, Jean-Philippe Weber and Sonia Tennina
Canadian Journal of Public Health / Revue Canadienne de Santé Publique
Vol. 83, No. 3 (MAY / JUNE 1992), pp. 184-187
Stable URL: http://www.jstor.org/stable/41991442
Page Count: 4
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Abstract

Smoking in hospitals is now forbidden. In several hospitals, however, women in labour are allowed to smoke in designated smoking areas. This study assesses whether smoking during labour increases the carboxyhaemoglobin concentrations in maternal and cord blood, taking into account the number of cigarettes smoked during pregnancy, duration of labour and parity. Women were questioned on their smoking behaviour shortly after delivery. A total of 295 mother-infant pairs were included in the study. Of the 94 (31.9%) smokers, 33 smoked during labour at home only and 34 during labour at the hospital. For newborns of smokers, the daily ration of cigarettes smoked by the mother during pregnancy and the number smoked during labour explained respectively 10.4% and 10.8% of the residual variance of carboxyhaemoglobin in cord blood. Smoking during labour significantly increases carboxyhaemoglobin levels. It should be prohibited in hospitals. Il est maintenant défendu de fumer dans les hôpitaux. Cependant, les femmes sont autorisées à fumer pendant le travail obstétrical dans des locaux désignés à cette fin. Cette étude évalue si le fait de fumer pendant le travail augmente le taux de carboxyhémoglobine dans le sang de la mère et du cordon, en tenant compte de la consommation quotidienne de cigarettes pendant la grossesse d'une part, et de la durée du travail et de la parité d'autre part. L'étude comprend 295 paires mère-bébé. Parmi les 94 (31,9%) fumeuses, 33 ont fumé pendant le travail à la maison seulement et 34 pendant le travail à l'hôpital. La quantité de cigarettes fumées quotidiennement par la mère durant la grossesse et le nombre de cigarettes fumées pendant le travail expliquent respectivement 10,4% et 10,8% de la variance résiduelle de la carboxyhémoglobine dans le sang du cordon chez les nouveaux-nés de mères fumeuses. Fumer pendant le travail obstétrical augmente significativement le taux de carboxyhémoglobine et devrait être interdit dans les hôpitaux.

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