New episodes of genital chlamydia (uncomplicated): by sex, UK
The incidence of sexually transmitted disease has continued to increase in the UK over the past decade, particularly among young people.
Chlamydia has been the most common sexually transmitted infection since 2000. Between 2006 and 2007 there was a 7 per cent rise in the number of Chlamydia diagnoses at genitourinary medicine (GUM) clinics – a rise of 8 per cent in men, and 6 per cent in women.
The number of cases has steadily increased since the late 1990s and had almost tripled from 48,726 chlamydia diagnoses in 1998 to 121,986 in 2007. Rates in 2007 were 204.7 diagnoses per 100,000 men and 198.1 per 100,000 women. The largest proportion was among those aged below 25 years, accounting for 68 per cent of Chlamydia diagnoses in GUM clinics in the UK in 2007, (83,117). This age-group represents 57 per cent of Chlamydia diagnoses among males, and 79 per cent among females (34,626 and 48,491 cases respectively).
Within England, the number of Chlamydia diagnoses was highest in London, (22 per cent and 21 per cent among men and women respectively), followed by the North West region (15 per cent among both men and women).
In 2007 the second most common sexually transmitted infection was genital warts. There were 89,838 diagnoses in GUM clinics in 2007. Diagnoses are highest among men and women aged 20–24 years (16,697 and 14,386 respectively). London had the highest rates of genital warts seen in GUM clinics for both sexes.
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Contraception and sexual health