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Reliable, easy-to-read patient information on common medical conditions β€” written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Pyloric stenosis epidemiology and demographics

Introduction

Overview

Overview

The incidence of infantile pyloric stenosis is approximately 400 per 100,000 individuals worldwide and it is four times more common in males. It usually affects individuals of the Caucasian race. Asians individuals are less likely to develop infantile pyloric stenosis. The prevalence of infantile pyloric stenosis in the course of 11 years (1989-1999) was approximately 7.3 per 100,000 individuals in one study. It is observed that the mortality rate of pyloric stenosis is very low and usually results from delays in diagnosis that causes severe dehydration and shock.

Epidemiology and Demographics

Epidemiology and Demographics

Incidence

  • The incidence of infantile pyloric stenosis 400 per 100,000 individuals worldwide.[1]

Prevalence

  • The prevalence of infantile pyloric stenosis in the course of 11 years (1989-1999) was approximately 7.3 per 100,000 individuals in one study.[2]

Mortality rate

Gender

  • Males are more commonly affected by infantile pyloric stenosis than females.[4]
  • The male to female ratio is approximately 4 to 1.

Race

  • Infantile pyloric stenosis usually affects individuals of the Caucasian race.[1]
  • Asians individuals are less likely to develop Infantile pyloric stenosis.
  • Incidence of infantile pyloric stenosis according to race include:
    • White – 240 per 100,000 individuals
    • Hispanic – 180 per 100,000 individuals
    • Black – 70 per 100,000 individuals
    • Asian – 60 per 100,000 individuals

Age

  • Infantile pyloric stenosis commonly affects infants.[1]
References

References

  1. ↑ 1.0 1.1 1.2 Schechter R, Torfs CP, Bateson TF (1997). “The epidemiology of infantile hypertrophic pyloric stenosis”. Paediatr Perinat Epidemiol. 11 (4): 407–27. PMIDΒ 9373863.
  2. ↑ Mukhin VN, Moskalenko VZ, Grona VN, Sopov GA, LinchevskiΔ­ GL (2001). “[Population prevalence of congenital hypertrophic pyloric stenosis in the Donetsk region of Ukraine]”. Tsitol Genet. 35 (5): 60–4. PMIDΒ 11944318.
  3. ↑ Hernanz-Schulman M (2003). “Infantile hypertrophic pyloric stenosis”. Radiology. 227 (2): 319–31. doi:10.1148/radiol.2272011329. PMIDΒ 12637675.
  4. ↑ Chalya, Phillipo L.; Manyama, Mange; Kayange, Neema M.; Mabula, Joseph B.; Massenga, Alicia (2015). “Infantile hypertrophic pyloric stenosis at a tertiary care hospital in Tanzania: a surgical experience with 102 patients over a 5-year period”. BMC Research Notes. 8 (1). doi:10.1186/s13104-015-1660-4. ISSNΒ 1756-0500.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]