Frequency and risk factors for incident and redetected Chlamydia trachomatis infection in sexually active, young, multi-ethnic women: a community based cohort study.
Aghaizu A, Reid F, Kerry S, Hay P, Mallinson H, Jensen J, Kerry SR, Kerry SM, Oakeshott P. 2014 Sex Transm Infect 2014 Aug 6. [Epub ahead of print]
The annual incidence of chlamydia in sexually active female students was 3.4 per 100 person-years, but 6.6 per 100 person-years in teenagers.
Incident chlamydia infection was independently associated with a new sexual partner, smoking, bacterial vaginosis, high risk human papillomavirus and age <20 years.
One in four women with chlamydia at baseline tested positive again after a median of 16 months.
Recommendations from chlamydia screening programmes to routinely retest those who have been recently treated for chlamydia should be publicised.