Factors affecting the allergic reaction to cockroaches antigen in two different environments

ABSTRACT

A sample of 281 pupils were randomly chosen from two schools of different sectors El-Shatby school representing humid area and King Maryout school representing dry area. They were tested intradermally with crude cockroaches antigen [German and American cockroaches]. Using logistic analysis, it has been proved that environmental factors and the history of atopy are the most effective causes of positive reaction. Age, sex, socioeconomic status and consanguinity are of no relevant effect on the cockroach antigen antibody reaction