Risk of placenta previa in second birth after first birth cesarean section: a population-based study and meta-analysis.

Objective: To compare the risk of placenta previa at second birth among women who had a cesarean section (CS) at first birth with women who delivered vaginally.

Methods: Retrospective cohort study of 399,674 women who gave birth to a singleton first and second baby between April 2000 and February 2009 in England. Multiple logistic regression was used to adjust the estimates for maternal age, ethnicity, deprivation, placenta previa at first birth, inter-birth interval and pregnancy complications.

Maternal morbidity associated with placenta praevia among women who had elective caesarean section.

Objective: Estimates of the increased risk of maternal complications after caesarean section posed by placenta praevia differ between studies and may not reflect current practice. We assess the impact of placenta praevia on maternal complications after elective caesarean section (CS).

Study Design: We undertook a retrospective cohort study of women who had an elective CS for a singleton at term in the English National Health Service between 1 April 2000 and 28 February 2009 using routine data from the Hospital Episode Statistics database.

The timing of elective caesarean delivery between 2000 and 2009 in England.

Background: In 2004, the National Institute for Clinical Excellence (NICE) recommended that an elective caesarean section for an uncomplicated pregnancy should not be carried out before 39 completed weeks due to increased risk of respiratory morbidity in newborns. We describe the trends and variation across 63 English NHS trusts in the timing of elective caesarean section (CS) for low-risk singleton deliveries.

Methods: We identified elective CS deliveries between 1st April 2000 and 28th February 2009 in English NHS trusts using the Hospital Episode Statistics.