Number of Births, Population Prevalence of Down Syndrome Estimated in Nine States

August 29, 2017

(Science Daily) – In 2010, there was an estimated total of 1,386 annual births with Down syndrome across the nine states, corresponding to 1 in 824 live births. Live birth prevalence ranged from 1 in 729 in Florida to 1 in 1,256 in Kentucky. The estimated reduction percentage — the proportion of live births reduced as a result of elective termination — was 39 percent overall and ranged from 26 percent in Indiana and Michigan to 52 percent in New Jersey. The researchers estimate that without terminations, an additional 898 individuals with Down syndrome would have been born in the nine states during 2010.

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