was estimated at over 400,000. However, this number comes from incorrect assumptions: the total population of the 2000 US census, 281.4 million people, divided by the most current rate of live births, 691 equals 407,236. Unfortunately, this technique does not take into account the gradual increase in frequency and increased lifespan of people with Down syndrome. Therefore, we actually don't know how many people with Down syndrome currently live in the United States4. Some estimates put the global population of people with Down syndrome at more than 6 million. Further research is needed to ascertain whether this number is accurate. (GDSF, 2011, para.