text_1: Chlamydia trachomatis is most prevalent in the UK among individuals in their 50s and 60s.
text_2: Urine from a sample of participants aged 16-44 years who reported at least one sexual partner over the lifetime was tested for the presence of Chlamydia trachomatis, type-specific human papillomavirus (HPV), Neisseria gonorrhoeae, and HIV antibody.