What are risk factors for Chlamydia?

• Multiple sexual partners or a new unknown sexual partner status • Age 15-24 years (especially age younger than 19 years) • Poor socioeconomic conditions (eg, homelessness) • Exchange of sex for drugs or money • Single marital status • Intercourse without a barrier contraceptive • History of a previous STI or current coinfection with another STI • Having been a foster child (males only) • Chlamydia is most prevalent in persons aged 15-24 years • Acquisition rates are comparable for the 2 sexes • Women are more likely to be asymptomatic than men (80% vs 50%); however, they are also more likely to develop long-term complications (eg, PID and infertility)