查看文章

OBJECTIVE: To investigate whether the outcome of a pregnancy is related to the time required to achieve that pregnancy (TTP). DESIGN: The distribution of the TTP for pregnancies ending in multiple birth, early (before week 12) and late (weeks 12–28) miscarriage, stillbirth, and extrauterine pregnancy was compared to that of pregnancies ending in singleton birth. Furthermore, the distribution of the TTP for preterm singleton births was compared to that of full-term singleton births. SETTING: Sweden. PATIENT(S): Information from three previous studies on reproduction was used: Women chosen for exposure to persistent organochlorine pollutants, or exposure as a hairdresser, and their respective controls. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Self-reported pregnancy outcome. RESULT(S): An increased TTP (i.e., decreased fecundability) was associated with pregnancies ending in …