This will be a retrospective study using the McGill University Obstetrics and Neonatal database (MOND). This is a comprehensive database the contains details on all women delivering in McGill University Health Center in Montreal Canada.~Details on all women who delivered in McGill University between 2001-2007 will be retrieved anonymously from the MOND database (McGill University Obstetrics and Neonatal database). Women will be divided to 2 groups according to their smoking status in pregnancy. Obstetric complications will be recorded in both groups.~Statistic tests would be applied in order to assess relation between smoking and Obstetrical complications.
This will be a retrospective study. Details on all women who delivered in McGill University between 2001-2007 will be retrieved anonymously from the MOND database (McGill University Obstetrics and Neonatal database). Women will be divided to 2 groups according to their smoking status in pregnancy. Obstetric complications will be recorded in both groups.