Introduction: As problems associated with infertility and population aging increase, there is a
growing interest in the factors that cause a decline in human fertility. Time-to-pregnancy …

Introduction As problems associated with infertility and population aging increase, there is a
growing interest in the factors that cause a decline in human fertility. Time-to-pregnancy …

Objective To investigate the association between time to pregnancy (TTP) and adverse birth
outcomes. Design Prospective cohort study. Setting Not applicable. Patient (s) A total of …

Background: Studies have shown significant correlation between time to pregnancy (TTP)
and pregnancy outcomes. But understanding of these mechanisms may not be facilitated …

Background Time-to-pregnancy (TTP) has never been studied in an African setting and
there are no data on the rates of adverse pregnancy outcomes in South Africa. The study …

STUDY QUESTION Has there been there a temporal change in time-to-pregnancy (TTP) in
the USA. SUMMARY ANSWER Overall, TTP was stable over time, but a longer TTP for …

Background Obstetric and perinatal outcomes depend not only on care during pregnancy,
as there is an increasing evidence of their relationship with preexisting conditions. Woman's …

STUDY QUESTION Is fecundity, measured as time to pregnancy (TTP), associated with
mortality in parents? SUMMARY ANSWER Prolonged TTP is associated with increased …

BACKGROUND: Both lifestyle factors and occupational and environmental factors have
been suggested to affect the female reproductive system. In the present study, the separate …

Births with known time to pregnancy (TTP) during the period 1989–2007 (n= 17,114) were
analyzed to investigate associations between TTP and pregnancy outcome among couples …