Duodenal atresia epidemiology and demographics

The prevalance of duodenal atresia is 0.1 to 0.4 per 100000. It commonly affects neonates and has a male to female ratio of 2 to 1.

The epidemiology and demographics of duodenal atresia are as follows:^[1][2]

• The incidence of intestinal atresia is:
  • 0.1 to 0.4 per 100000 for duodenum
  • 0.015 per 100000 for jejunum
  • 0.12 per 100000 for ileum

• The prevalence of duodenal atresia is estimated to be 0.1 to 0.4 per 100000 of cases annually.
  • About 60% of intestinal atresias
  • 30% associated with down syndrome

• Duodenal atresia commonly affects individuals in infancy.

• There is no racial predilection to duodenal atresia.

• Duodenal atresia affects males more commonly than females.
  • The male to female ratio is approximately 2 to 1.

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