Participants
Women with pre-existing diabetes mellitus (Type 1 or Type 2) who gave
birth to a singleton non-anomalous infant via elective caesarean section
between 36+0 and 38+6 weeks
gestation between 1 January 2011 and 31 December 2019 were included in
this study. Elective caesarean section was defined as a caesarean
section performed prior to the onset of labour and included indications
such as, previous caesarean section, suspected macrosomia,
non-reassuring fetal status, malpresentation or maternal choice. Women
who were planned for an elective caesarean section who presented in
labour or with prelabour rupture of membranes were excluded. The two
hospitals included a tertiary level hospital, with over 7,000 deliveries
per annum and a large metropolitan hospital with 5,500 deliveries per
annum.