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Objective To estimate the prevalence of alcohol consumption during pregnancy and while breastfeeding in Canada from 2003 to 2010, and to test the relation between self-perceived mental health status and alcohol consumption during pregnancy and while breastfeeding.Design Secondary analysis of four cycles of the Canadian Community Health Survey, a population-based cross-sectional survey.Setting Canada.Sample A total of 18 612 pregnant and 15 836 breastfeeding women.Methods The prevalence of alcohol consumption during pregnancy and while breastfeeding and 95% confidence intervals (CI) were calculated by province and territory, and cycle. The relation between self-perceived mental health status and alcohol consumption during pregnancy and while breastfeeding was explored using quasi-Poisson regression models.Main outcome measures Alcohol consumption during pregnancy and while breastfeeding, and self-perceived mental health status.Results In Canada, between 2003 and 2010, approximately one in every ten pregnant women (9.9%; 95%CI 9.2-10.5%) and two in every ten breastfeeding women (20.3%; 95%CI 19.4-21.2%) women consumed alcohol. Women with a lower self-perceived mental health status (i.e. 'good') were 1.40 (95%CI 1.18-1.67, P < 0.001) times more likely to have consumed alcohol during pregnancy, compared with women with an 'excellent' selfperceived mental health. There were no notable differences between the categories of mental health status in regard to alcohol consumption while breastfeeding.Conclusion Despite public health efforts in Canada, a significant proportion of pregnant and breastfeeding women consume alcohol. It is imperative that a standard screening protocol be initiated among pregnant and breastfeeding women, especially in high-risk populations (e.g. women utilising substance abuse treatment programs).Keywords Alcohol use, breastfeeding, Fetal Alcohol Spectrum Disorder, mental health, pregnancy, prevalence. Please cite this paper as: Lange S, Quere M, Shield K, Rehm J, Popova S. Alcohol use and self-perceived mental health status among pregnant and breastfeeding women in Canada: a secondary data analysis. BJOG 2016;123:900-909.

To cite this version:Elsa Lorthe, François Goffinet, Stéphane Marret, Christophe Vayssiere, Cyril Flamant, et al.. Tocolysis after preterm premature rupture of membranes and neonatal outcome: a propensity-score analysis. American Journal of Obstetrics and Gynecology, Elsevier, 2017, 217 (2) Background: There are conflicting results regarding tocolysis in cases of preterm premature

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