What is the prevalence of spinal muscular atrophy (SMA)?

Updated: Apr 28, 2014
  • Author: Hidehiro Takei, MD; Chief Editor: Adekunle M Adesina, MD, PhD  more...
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After cystic fibrosis, spinal muscular atrophy (SMA) is the second most common autosomal recessive disease in humans. The overall incidence of SMA is frequently cited as being about 1 in 6000 to 1 in 10,000 live births, and the carrier frequency is as high as 1 in 40. [12]

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