In some provinces, obstetricians were the most common provider of prenatal care (e.g., Ontario) compared to family physicians in others (e.g., British Columbia) [ 65].
The most common risk factors in the prenatal version were prenatal anxiety and prenatal depression (85.5% and 23.7%, respectively), and those in the postpartum version were prenatal anxiety, prenatal depression, and maternity blues (82.9%, 17.1%, and 57.9%, respectively).
Isolated antenatal hydronephrosis (ANH), defined as a dilation of the renal pelvis (≥5 mm), is one of the most common abnormalities detected on prenatal ultrasound.
At a prevalence rate of 13-25%, mental health problems are among the most common morbidities of the prenatal and postnatal periods.
Multivariate analysis was performed using logistic regression model to identify likely biosocial predictors such as age, ethnic group, religion, occupation and education on the two most common reasons for requesting prenatal ultrasound, which were fetal viability and gender determination.
Therefore, prenatal detection of T21 is considered the most common and important aspect of prenatal genetic testing.
The most common rapid molecular methods for prenatal aneuploidy detection are fluorescence in situ hybridization (FISH) and quantitative fluorescent polymerase chain reaction (QF-PCR) [ 14].
At a prevalence of 13 to 25%, stress, depression, and anxiety are the most common complications experienced by women during the prenatal and postnatal periods [ 1, 2].
As fetal loss is the most common fear among women while undergoing invasive prenatal procedure, recent detection of cfDNA is a promising technique; offering the possibility to detect fetal numerical chromosomal aberrations in a non-invasive way [ 21].
