STI Prevention Program for Entertainment Establishments in Singapore

The investigators aim to assess the efficacy of a multi-component intervention on condom use and sexually transmitted infection (STIs) in female entertainment workers and men frequenting entertainment establishments (EEs), using a quasi-experimental design. Joo Chiat and Golden Mile Complex will be selected purposively as control cluster sites (n=220) with follow-up of entertainment workers at 6 weeks. The same sites will be used as intervention sites after a 3-months 'wash out' period. Self-reported condom use, vaginal swab samples for polymerase chain reaction (PCR) for cervical gonorrhoea and chlamydia infections, and throat swabs for culture for pharyngeal gonorrhoea will be assessed. Clark Quay will be the intervention venue for the heterosexual men while Tanjong Pagar will be the equivalent control site. Using time location sampling, cross-sectional samples of men patronising these establishments will be assessed on self-reported condom use at baseline (n=600) and 6 months after the intervention (n=400) in both intervention and control groups.