Emergency cesarean section rate in the women aged 35 or older compared to those aged 21-25 at Siriraj Hospital

Abstract

Objectives To compare the emergency cesarean section rate and other pregnancy outcomes
in the women aged ≥ 35 with those aged 21-25.
Design Retrospective study.
Setting A medical teaching hospital.
Subjects 200 pregnant women aged ≥ 35 (study group) and 200 pregnant women aged
21-25 (comparison group) who delivered between July 1, 2005 and August 31, 2005.
Main outcome measures Demographics, antepartum, intrapartum and postpartum complications
including neonatal outcomes.
Results The study group had significant increase in rate of cesarean section (55.5% vs
22%, RR 2.5, 95% CI 1.9-3.4). The rate of primary emergency cesarean section in the study
group was higher than the comparison group (nullipara 50% vs 20.7%, RR 2.4, 95% CI 1.6-
3.6; multipara 14.2% vs 7.3%, RR 2.0, 95% CI 0.7-5.5). Other pregnancy outcomes in both
groups were not significantly differrent.
Conclusions Advanced maternal age had significantly higher rate of primary emergency
cesarean sections compared with the pregnant women aged 21-25.