Chlamydia and gonorrhea co-occurrence in a high school population.

Background: Chlamydia and gonorrhea coinfection outside of healthcare facilities is less well known.

Goal: To determine the co-occurrence of both sexually transmitted diseases (STDs) among high school students participating in a school-based screening and to assess the relevance of dual treatment recommendations in this population.

Study Design: During the 1998 to 1999 school year, 5,877 students attending an urban U.

Screening for sexually transmitted diseases during preparticipation sports examination of high school adolescents.

In an urban school district, 636 students in grades 9-12 were tested for Chlamydia trachomatis and Neisseria gonorrhoeae by ligase chain reaction assays using specimens collected for routine urinalyses during sports physical examinations. Chlamydia and gonorrhea prevalences were 2.8% and 0.