The authors earlier conducted a retrospective study of time to pregnancy among a group of
pregnant women in Minnesota, in order to investigate the relation between cigarette …

Epidemiological studies relating cigarette smoking to the ability to conceive and maintain a
pregnancy provide information on the clinical significance of smoking on reproductive …

The relationship of parents' cigarette smoking to outcome of pregnancy—implications as to
the problem of inferring causation from observed associations. Amer J Epidem 1971; 93 …

We conducted an epidemiologic study to test the hypothesis that women who smoke have
reduced fertility. Data on smoking history and number of noncontracepting cycles until …

Abstract Objective and method Timeline Follow-back interviews were conducted with 107
pregnant women enrolling in smoking cessation and relapse prevention clinical trials in the …

Animal studies have suggested that fertility may be impaired by transplacental exposures,
but little is known about human prenatal exposures and subsequent adult reproduction. A …

The identification of cigarette smoking as a cause of diverse diseases and other adverse
health effects has been one of the most significant and visible successes of epidemiology …

How can women who are not yet pregnant be motivated to stop smoking before they
become pregnant? Epidemiological studies have suggested that periconceptional smoking …

A total of 2198 mothers were interviewed at the 20th week of pregnancy and their smoking
habits before pregnancy and the time from discontinuation of contraception to the beginning …

Cigarette smoking during pregnancy is an important, avoidable factor associated with low
birth weight. Maternal age is also associated with variations in birth weight. Using birth …