Insights into the timing of repeated testing after treatment for Chlamydia trachomatis: data and modelling study.

Objectives: The objective of this study was to determine the optimal time interval for a repeated Chlamydia trachomatis (chlamydia) test.

Methods: The authors used claims data for US women aged 15-25 years who were enrolled in commercial health insurance plans in the MarketScan database between 2002 and 2006. The authors determined the numbers of initial positive and negative tests that were followed by a repeated test and the positivity of repeated tests.

Prevalence of Neisseria Gonorrhoeae among men screened for Chlamydia Trachomatis in four United States cities, 1999-2003.

Objectives: Neisseria gonorrhoeae infections are the second most commonly reported disease in the United States and cause significant morbidity. We describe the prevalence of gonorrhea in a large sample of men tested for gonorrhea and Chlamydia trachomatis in Baltimore, Denver, San Francisco, and Seattle.

Methods: Gonorrhea prevalence was measured among 17,712 men tested in a variety of non-sexually transmitted disease (STD) clinic venues using urine-based nucleic acid amplification tests.

Prevalence of Chlamydia trachomatis infection among men screened in 4 U.S. cities.

Objective: The objective of this study was to measure the prevalence of Chlamydia trachomatis (CT) infection among men in clinical and nonclinical settings across the United States.

Goal: The goal of this study was to obtain data to inform recommendations regarding male CT screening.

Study: The authors conducted a cross-sectional study of CT prevalence among adolescent and adult men in 4 U.