What is the survival rate of edward's syndrome?

The survival rate of Edward's syndrome (trisomy 18) is low, with approximately 50% of affected infants not surviving beyond the first week of life. The majority of infants with trisomy 18 do not survive past their first year, with very few living into adulthood. The prognosis for individuals with Edward's syndrome is generally poor due to the significant physical and intellectual disabilities associated with the condition.