text_1: Chlamydia trachomatis is most prevalent in the UK among sexually-experienced individuals aged 16 to 24.
text_2: Among sexually active 16-24-year-olds, 54·2% (51·4-56·9) of women and 34·6% (31·8-37·4) of men reported testing for chlamydia in the past year, with testing higher in those with more partners.