at least 80% of children affected by ds are born from mothers under the age of 35, despite women over the age of 35 being deemed to be at higher risk of having a child with ds.

bonyane 80% ya bana ba angwang ke ds ba tswalwa ke bomme ba dilemo tse ka tlase ho 35, le ha feela basadi ba dilemo tse ka hodimo ho 35 ba nkwa e le bona ba kotsing e kgolokgolo ya ho tswala ngwana ya hlahang ka ds."
