what is the life span of a down syndrome
Lifespan has increased markedly for persons with Down syndrome. In 1900 life expectancy was around 9-11 years. It is now above 50 years with 1:10 living to 70 years of age (Baird & Sadovnick, 1987). In the western world there are more persons with Down syndrome who are in their mid-teens or older than there are children with Down syndrome (Extrapolated from data reported by, amongst others, Steele, 1996).