[Are we testing the right people? Results of a patient questionnaire in the STD and HIV counselling office of the local health authority in the city of Cologne].

Background: HIV testing and counselling is offered free of charge in most local health offices in Germany. During 2003, a survey was performed among German-speaking clients of the Cologne local health office to look at socio-demographic background, reasons for testing and sexual risk behaviour.

Methods: All German-speaking clients attending the HIV counselling office from March to July 2003 were asked to fill in an anonymous standardised questionnaire. Questions included demographic characteristics, social status, STI history, reasons for HIV testing, sexual orientation and number of sexual partners. Data were compared to the general Cologne population regarding demographic characteristics. Female respondents were compared to heterosexual men and men who have sex with men (MSM); German respondents were compared to migrants using SPSS 14.0.

Results: A total of 457 female and 488 male clients participated (response rate 93.9 %). Average age was 28.4 years. Of all participants, 17.7 % were of non-German origin. The respondents had a high school degree in 80.8 % of the cases compared to 33.5 % in the general Köln population (p < 0.001). Among men, 30.2 % were MSM. Having a "new partner" or "unprotected sex with a person with unknown HIV status" were reported by 483 (39.8 %) and 373 (30.8 %) as reasons for testing. 38.7 % of the respondents reported choosing the local health office for HIV testing because it was free of charge and 24.5 % because it was anonymous. Women and heterosexual men had a median of 1, MSM a median of 3 sexual partners within the past 6 months (p < 0.001). Vaccination against hepatitis B was reported by 34.4 % of the clients, the proportion was higher among MSM (46.9 % p < 0.001) and lower among migrants. 112 (11.9 %) persons reported having had a previous STI.

Conclusions: With the exception of MSM, the offer of free and anonymous HIV testing and counselling does not reach persons who carry a higher risk for HIV. As the risk for STI is higher than for HIV in Germany and there is a low public awareness, HIV counselling should be used for comprehensive sexual health counselling and include the offer for STI testing, Further outreaching efforts and other settings are necessary to reach persons with a low education level and highly vulnerable persons.