Introduction: This study investigated changes in smoking behavior across pregnancies in a
sample of 10,890 primiparous women participating in the prospective population-based …

Please cite this paper as: Rattan D, Mamun A, Najman J, Williams G, Doi S. Smoking
behaviour in pregnancy and its impact on smoking cessation at various intervals during …

OBJECTIVE: The purpose of this study was to study the effect of pregnancy outcomes on
risks of continued smoking in subsequent pregnancy. STUDY DESIGN: Cohort study of first …

Several studies have examined the effect of in utero exposure to smoking and fecundity
among the offspring but the findings are contradictory. We therefore studied the waiting time …

BACKGROUND: Cigarette smoking has long been known to have an effect on female
fertility. The existence of an ovarian factor is clear when one considers that the mean age of …

PURPOSE: This study examined the association between maternal smoking before and
during the first trimester of pregnancy and spontaneous abortion. METHODS: We have been …

Background. The aims of the study were to describe changes in smoking habits and
evaluate secular trends among all Norwegian pregnant women during the period 1999 …

Background. Few studies have examined smoking prior to pregnancy and the occurrence of
spontaneous abortion, as most studies have addressed the risk of spontaneous abortion in …

Approaches for monitoring time trends in couples' fecundity and for studying its sensitivity to
environmental factors are needed. Two approaches rely on the inclusion of a cross-sectional …

Maternal and paternal smoking are associated with numerous problems of reproduction and
pregnancy. Among men, active smoking reduces the quality and mobility of the spermatozoa …