PUBLIC HEALTH

Building a sentinel surveillance system for sexually transmitted infections in Germany, 2003

V Bremer, U Marcus, A Hofmann and O Hamouda

Department for Infectious Disease Epidemiology, Robert Koch-Institut, Berlin, Germany

Correspondence to:
Correspondence to:
Viviane Bremer MD MPH
Robert Koch-Institut, Department for Infectious Disease Epidemiology, Seestrasse 10, 13353 Berlin, Germany; bremerv{at}rki.de

Background/objectives: Increases in STIs have been reported from the United States and Europe. Since 2001, only syphilis and HIV are notifiable in Germany. A sentinel surveillance system has been set up to assess the occurrence and trends of STIs and identify risk groups.

Methods: Through the sentinel system data are collected from local health offices (LHO), hospital based STI clinics and private practitioners (dermato-venerology, urology, gynaecology, or HIV). For every newly diagnosed laboratory confirmed infection of HIV, gonorrhoea, chlamydia, syphilis, or trichomoniasis physicians complete a standardised questionnaire regarding diagnosis, source of infection, and demographic information. Patients complete a questionnaire about sexual risk behaviour. The patient form is matched with the diagnosis form using a unique identifier number. Characteristics of sentinel patients were compared with those reported through the HIV and syphilis national notification system.

Results: 58 LHO, 14 hospital based STI clinics, and 160 private practitioners (53.1% dermato-venerologists) from all federal states participated in the study. 176 (75.9%) sentinel sites are located in cities of >100 000 inhabitants. From 1 March 2003–29 February 2004, a total of 1833 STIs have been reported, among them 452 chlamydia, 321 syphilis (10.9% of notified syphilis), 343 gonorrhoea, 269 HIV (15.7% of notified HIV). 925 (50.5%) of the patients were male, the median age was 31 years. Female patients were more often of foreign origin (² test; 70.0% v 26.3%; p<0.001).

Conclusions: Our sentinel system will provide a base for detection of STI trends in Germany. In addition, information about sexual risk behaviour will enable us to target prevention at those most at risk for STIs.

Abbreviations: LHO, local health offices; MSM, men who have sex with men; PID, pelvic inflammatory disease; STIs, sexually transmitted infections

Keywords: sexually transmitted infections; sentinel surveillance

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