We evaluated brief combination interventions to simultaneously reduce sexual and injection risks among female sex workers who inject drugs (FSW-IDUs) in Tijuana (TJ) and Ciudad Juarez (CJ) Mexico during 2008-2010, when harm reduction was expanding in TJ, but not CJ. Methods: FSW-IDUs ]18 years reporting recently sharing injection equipment and unprotected sex with clients participated in a randomized factorial trial comparing four brief, single-session combinations of active

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... ewing and didactic interventions focused on negotiating safer-sex in the context of drug use and safer-injection skills. The injection intervention included a video made by FSW-IDUs. Women underwent quarterly interviews and testing for HIV, syphilis, gonorrhea, Chlamydia and Trichomonas. Poisson regression with robust variance estimation and repeated measures ordinal logistic regression via GEE examined effects on HIV/STI incidence and receptive needle sharing frequency, respectively. Background: Traditional HIV Prevention Programs have not adequately addressed the issues of women in substance abuse recovery. Background: Initiatives aimed at behaviour change of key populations such as the female sex workers (FSWs) are pivotal in reducing the transmission of HIV. A 5-year implementation research to establish the predictor factors of behaviour change among FSWs in Kenya was initiated by the African Medical Research Foundation (AMREF) with Sida and DfID support, whose follow up results are presented in this paper. Methods: This cross-sectional survey interviewed 156 female sex workers (FSWs) identified through snowball sampling. The measurement of behaviour change was based on: the consistent use of condoms with both regular and non regular clients, reduced number of clients, routine checks for STIs, and involvement in alternative income generating activities. The adjusted odds ratios at 95% confidence interval computed during binary logistic regression analysis was used to determine the behaviour change predictor factors. Results: Most FSWs (84%) had participated in AMREF's integrated intervention programme for at least one year, with 4.4 years as the average duration. The results indicated that 59.1% had gone through behaviour change during the project's life cycle. The adjusted odds ratio showed that the FSWs with secondary education or more were 2.23 times likely to change behaviour, protestants were 4.61 times, being in sex work for!4 years were 2.36 times, FSWs with good HIV prevention knowledge were 4.37 times, and those engaged in alternative income generating activities were 2.30 times more likely to change their behaviour compared to respective counterparts. Conclusion: Behaviour change among FSWs was possible and is associated with the level of education, religious affiliation, number