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Prevalence Estimate Chlamydia and Gonorrhoea Netherlands

To obtain an estimate of the prevalence of chlamydia and gonorrhoea among men and women aged 18 to 34 years.

Swingers World Attitude and Practices (SWAP-study)

The main objective is to map sexual and other sexually transmitted Infections (STI)-related risk behaviour, prevalence and incidence of STI in swingers and identify determinants for STI spread.Secondary objectives are:A. Describe the (sexual)…

Chlamydia detection after treatment in persons attending an STI clinic

To understand the transmission and acquisition of anorectal CT infections in women (i.e. to and from their male sexual partners and to and from the anal and genital region of the same woman), in women who receive routine care, in order to inform…

Prevalence Estimate Chlamydia And gonorrhoea Netherlands, second edition

To obtain an estimate of the prevalence of chlamydia and gonorrhoea among men and women aged 16.5 to 34 years.

Prevalence of HIV and STD's in a Dutch transgender population: TITAN-study

1)to gain insight into the prevalence of HIV and other STDs among transgender people. 2) to identify determinants that are associated with HIV and STD presence (through optional questionnaires).