Fig. 2From: Prevalence of Chlamydia trachomatis infection in women, heterosexual men and MSM visiting HIV counselling institutions in North Rhine-Westphalia, Germany - should Chlamydia testing be scaled up?Prevalence of Chlamydia trachomatis infection by age group in women, heterosexual men and MSM. For each bar, the back line represents the 95 % confidence intervalBack to article page