Distribution of dermatophytosis according to age, ethnic group and sex.

Abstract

Six hundred and two cases of dermatophytosis were analyzed according to age, anatomical distribution, ethnic group and sex. 915% of the children were Negroid whereas 70.3% of the adults were Caucasoids. 92.9% of all cases were caused by the anthropophilic dermatophytes. Microsporum audouinii caused 53. 1% of the infections in children and Trichophyton rubrum was the causative organism in 78.5% of the adult cases.The following statistically significant differences were found in Negroid children: tinea capitis was more frequent in boys than in girls; tinea corporis occurred more frequently in girls than in boys; and M. audouinii and T. tonsurans var. sulfureurm infections were more frequent in boys than in girls.Lymphadenopathy was observed in 57.1% of the Negroid girls and 36.4% of the boys. Kerion formation was equally distributed between girls and boys and occurred in 17% of the scalp infections. Dermatophytids were found in 4.1% of the Negroid children.The following significant differences were found i...