Résumé :
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[BDSP. Notice produite par INIST-CNRS BEHCDR0x. Diffusion soumise à autorisation]. Objectives. We sought to determine the association of social-environmental factors with condom use and sexually transmitted infections (STIs) among 420 sex workers participating in an STI/HIV prevention study in Corumbá, Brazil, to inform future intervention efforts. Methods. Participants provided urine samples for polymerase chain reaction testing of chlamydia and gonorrhea and responded to multi-item scales addressing perceived social cohesion, participation in networks, and access to and management of resources. We conducted multivariate log-linear and negative binomial regression analyses of these data. Results. Increased social cohesion was inversely associated with number of unprotected sex acts in the preceding week among women (adjusted incidence rate ratio [IRR]=0.80 ; P<. and there was a marginal association among men irr="0.41" p="08)." women increased participation in social networks associated with decrease frequency of unprotected sex acts as access to management material resources social-environmental factors were not stis. conclusions. the context within which populations negotiate sexual behaviors is condom use. future efforts prevent sti should incorporate strategies modify environment.>
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