ABSTRACT
Risk of Down’s Syndrome (DS) in a Baby Association of Down’s syndrome with maternal age Until recently, maternal age was the only factor used to identify mothers who are at high risk of developing a Down’s syndrome baby. As demonstrated by the graph below, the risk of developing Down’s syndrome increases exponentially with maternal age. Women aged over 35 are routinely offered invasive diagnostic tests. Recent studies have
revealed that increasing paternal age also increases the risk of Down’s, especially in older mothers.
