Toronto’s North York General Hospital pioneers new screen for genetic disorders Incidence Of Genetic Disorders The numbers are disturbing. An expectant mother at age 25 has about a 1 in 2,200 chance of giving birth to a baby suffering from a genetic disorder, including Trisomy 21 (Down syndrome), Trisomy 18 (Edwards syndrome), Trisomy 13 (Patau … Continue reading New Earlier Screen For Pregnant Women