Comment Re:Seems a little strange (Score 1) 857
Actually, YOU'RE wrong. http://en.wikipedia.org/wiki/Down_syndrome#Incidence
At maternal age 20 to 24, the probability is one in 1562; at age 35 to 39 the probability is one in 214, and above age 45 the probability is one in 19.[14]
At maternal age 20 to 24, the probability is one in 1562; at age 35 to 39 the probability is one in 214, and above age 45 the probability is one in 19.[14]