Epidemiology

Pinworms represent the most common helminthic infection in the US.[11] Pinworms are found worldwide, although more commonly in temperate regions. An estimated one billion people are infected globally.[12]

Studies in Europe report an estimated prevalence of around 20% among kindergarten and elementary-school aged children.[12] In the highest risk groups, the prevalence may be as high as 50%.[13] There is no difference in rates of infection based on sex, race, or socioeconomic status.[14]

Infection is easily transmitted within classrooms and households, and is most common in school-aged children and their caregivers.[1][13]​ Prevalence rates are also higher in institutionalized people.[1]​

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