Hypertrophic pyloric stenosis most commonly occurs in all of the following patient populations except:

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Hypertrophic pyloric stenosis is more common in male infants than in female infants, with a male-to-female ratio of approximately 4:1. It typically presents in infants between 2 and 6 weeks of age with symptoms of projectile vomiting that is bile-free, due to the obstruction at the pylorus which is before the bile duct enters the digestive tract.

Hypertrophic Pyloric Stenosis Most Commonly Occurs in All of the Following