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One thousand one hundred and eighty-five children and 81 adolescents and young adults were examined for Enterobius vermicularis (pinworm). The cellulose adhesive (Scotch) tape method was employed. All were examined once except for 69 negative on the initial swab who were studied from 2 to 5 times. Eight more positive among them were then found.
The incidence among 951 Puerto Rican patients was 9.8%; that of 249 non-Puerto Rican white patients was 23.3%. This is statistically significant. There was no statistical difference in incidence between Puerto Ricans born in New York City (11.3%) and those born in Puerto Rico (9.3%).
A token survey of 66 Negro children yielded a low incidence in this group. Only 6.1% (4 cases) were infected.
There was no difference in infection rate with regard to sex. The peak age of infection was the 5- to 9-year-old group.
550 First Avenue, New York 16, New York.
Medical Student Fellow of the National Foundation (formerly the National Foundation for Infantile Paralysis).