This could be attributed to the high fertility rate and trends toward reproduction even at an advanced maternal age
The impact of advanced maternal age
and parity on obstetric and perinatal outcomes in singleton gestations.
The study involved women with advanced maternal age
and those whose fetuses were shown in early screening to be at heightened risk for Down syndrome, to have structural abnormalities (as seen with ultrasound), or to have indications of other problems.
Based on this study, the observation that advanced maternal age
is associated with cesarean deliveries is in line with the findings of many other studies.
Though it is still undeniable that advanced maternal age
brings a higher risk of miscarriage and conditions such as Trisomy 21, "early births appear to be more dangerous for children than late ones," said study researcher Mikko Myrskyla of the Max Planck Institute for Demographic Research in Germany.
In the Western countries, maternal age at first delivery has been steadily increasing, yet few studies have examined women of advanced maternal age
Advanced maternal age
, defined as age 35 years and older at estimated date of delivery, has become increasingly common (Martin et al, 2002).
High risk factors are previously scarred uterus, dilatation and curettage, advanced maternal age
and abnormal placentation (2).
Studies showed that the main demographic factors associated with stillbirth were teenage mothers (Hollander, 2006; Brian, Bateman and Lynn 2006), advanced maternal age
, greater than 34 years (Hollander, 2006; Fretts, 2005; Brian, et al.
Advanced maternal age
is also an increasingly prevalent risk factor.
Identified risk factors for preterm birth include smoking, alcohol consumption, advanced maternal age
, genetics, cervical insufficiency, previous preterm birth, and infection.
The current study whittles down a list of significant risk factors identified by an earlier HIG study that included female gender; white, non-Hispanic race; prematurity; low birth weight; multiple gestation; and advanced maternal age
Special topics covered in the remaining chapters include preeclempsia, diabetes, advanced maternal age
, multiple gestations, preterm birth, and the safety of ultrasound.
Pregnancy in older women is associated with many confounding factors (for example parity, pre-existing diabetes and hypertension), which should be taken into account if the risks associated with advanced maternal age
are to be quantified.
We have known for many years that advanced maternal age
is just a screening test and will only identify about 30% of the pregnancies that carry fetuses with significant chromosome abnormalities like Down syndrome," Dr.