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HIV pre-exposure prophylaxis (PrEP) is highly effective but depends on patients' care engagement, which is often mediocre and poorly measured in real-world settings. This study aimed to assess the effectiveness of a PrEP program in a sexual health center that included accompanying measures to improve engagement. A retrospective observational study was conducted. All men who have sex with men (MSM) who initiated PrEP for the first time between 1 August 2018 and 30 June 2019 in the Fernand-Widal sexual health center, Paris, France, were included. Among the 125 MSM who initiated PrEP, the median age was 33 and most had only male partners. At initiation, 58% were considered at very high risk of HIV infection, mainly due to a history of post-exposure prophylaxis. During the first year, patients attended a median of three visits (Q1-Q3, 2-4). At 12 months, 96% (95% CI, 92.6 to 99.4) had a successful PrEP course, assessed by a novel metric. These results highlight the possibility of achieving a high PrEP success ratio among MSM in a real-world setting. The accompanying measures and one-on-one counseling by a trained counselor could explain the effectiveness of this PrEP program.

Background: Screening, condom use and post-exposure prophylaxis (PEP) are among existing HIV prevention strategies. However, efficient use of these strategies requires that patients have an adequate knowledge of HIV transmission routes and awareness of risk behaviors. This study aimed to assess knowledge about HIV transmission among patients who attended a free HIV and sexually transmitted infection (STI) screening center in Paris, France, and to explore the patient profiles associated with HIV-related knowledge., Methods: This observational cross-sectional study included 2002 patients who attended for STI testing from August 2017 through August 2018 and completed a self-administered electronic questionnaire. Based on incorrect answers regarding HIV transmission, two outcomes were assessed: lack of knowledge and false beliefs. Factors associated with these two outcomes were explored using univariate and multivariate logistic regressions., Results: Only 3.6% of patients did not know about HIV transmission through unprotected sexual intercourse and/or by sharing needles. More than one third of patients (36.4%) had at least one false belief, believing that HIV could be transmitted by sharing a drink (9.7%), kissing (17.6%) or using public toilets (27.5%). A low educational level and no previous HIV testing were associated in multivariate analyses with both lack of knowledge and false beliefs. Age and sexual orientation were also associated with false beliefs. Furthermore, 55.6% of patients did not know that post-exposure prophylaxis consists of taking emergency treatment as soon as possible after risky intercourse., Conclusions: Although the main HIV transmission routes are well known, false beliefs persist and knowledge regarding PEP needs to be improved. Prevention campaigns must focus on these themes which appear as a complementary strategy to pre-exposure prophylaxis to reduce HIV infection.

Background: Some patients who test positive for sexually transmitted infections (STIs) fail to return for results and treatment. To target improvement actions, we need to find out who these patients are. This study aimed to explore factors associated with failure to return within 30 days (FTR30) after testing among patients with positive results in a free STI testing centre in Paris., Methods: All patients with at least one positive result between October 2016 and May 2017 and who completed a self-administered questionnaire were included in this cross-sectional study (n = 214). The questionnaire included sociodemographic factors, sexual behaviour and history of testing. Factors associated with FTR30 were assessed using logistic regression models., Results: More than two-thirds of patients were men (72%), and the median age of patients was 27 years. Most patients were born in metropolitan France (56%) or in sub-Saharan Africa (22%). Men who had sex with men represented 36% of the study population. The FTR30 rate was 14% (95% CI [10-19%]). In multivariate analysis, previous HIV testing in younger persons (aOR: 3.36, 95% CI [1.27-8.84]), being accompanied by another person at the pretest consultation (aOR: 3.45, 95% CI [1.36-8.91]), and lower self-perceived risk of HIV infection (aOR: 2.79, 95% CI [1.07-7.30]) were associated with a higher FTR30. Testing for chlamydia/gonorrhoea without presumptive treatment was associated with a lower FTR30 (aOR: 0.21, 95% CI [0.07-0.59])., Conclusions: These factors that affect failure to return are related to the patient's representations and involvement in the STI screening process. Increasing health literacy and patient empowerment could help to decrease failure to return after being tested positive for HIV/STI., Trial Registration: Not applicable.

Background: Text messaging after sexually transmitted infection (STI)/HIV screening may be a cost-effective means of improving patient care, but it may not be appropriate for all patients. This study aimed to explore the profiles of patients who did not participate in a short message service (SMS) program after STI/HIV testing., Methods: In October 2016, 396 patients in Paris were screened for STI/HIV and were invited to complete an anonymous self-administered questionnaire. Patients were offered the possibility of being notified by SMS after testing, 68% accepted (SMS group) and 32% did not (no-SMS group). Each of the 100 patients from the no-SMS group who had completed the questionnaire was matched with the next patient from the SMS group. Factors associated with nonparticipation in the SMS program were studied using conditional logistic regression models., Results: Participation in the SMS program was not related to STI screening characteristics (screening results and seriousness of the diseases screened) but seemed to be related to patient characteristics. In multivariate analysis, compared with patients in the SMS group, those in the no-SMS group were more often older, socially less favored (born in Africa or Asia, no university diploma, living outside Paris). They also more often declined to answer sexual questions, which could reflect a need for privacy and discretion., Conclusions: Although SMS after STI/HIV screening is well accepted, it does not suit all patients. Several contact options should be proposed to comply with patients' preferences and to reduce the risk of nondelivery of STI screening results.

Most perinatally HIV-infected children receiving antiretroviral treatment now survive into adolescence. This is a period when young people experience puberty, shape their sexual identity and initiate their own social life. The aim of our analysis was to compare aspects of the sexual and reproductive health, social life and plans for the future of perinatally HIV-infected adolescents (PHIVAs) with a control group from the general population. We used data from the Teens Living with Antiretrovirals (TEEWA) survey carried out from 2010 to 2012 in Thailand among PHIVAs aged 12-19 years. Adolescents completed a self-administered questionnaire focusing on their daily life. Each PHIVA (case) was matched on sex, age and place of residence with a randomly selected adolescent from the general population (control). Analysis was stratified by gender and age; McNemar's test was used to compare cases and controls. A total of 1142 adolescents (571 cases and 571 controls) were included in the analysis, 42% boys and 58% girls. Cases experienced puberty delay compared to controls (p < 0.01). Cases and controls did not differ in terms of sex education, sexual initiation, romantic relationships or friendships, and risky behaviours. However, PHIVAs were less likely to attend the education system (p < 0.01), to plan for marriage (p < 0.01) or parenthood (p < 0.01). PHIVAs do not differ substantially from controls in terms of sexual and social life. Yet, affirmative action policies could help counterbalance their educational handicap. Provision of psychosocial support could enhance their ability to make informed decisions with regards to family formation.

Background: HIV pre-exposure prophylaxis (PrEP) is highly effective but depends on patients’ adherence and follow-up. To enhance follow-up quality and care engagement, the PrEP program developed in our Parisian sexual health center offers accompanying measures throughout the patients’ course of care, relying notably on an identified and easily accessible referent. This trained paramedic counselor in sexual health provides support in organizing appointments, phone and email follow-up to answer daily questions, as well as one-on-one sessions of therapeutic support and counseling. This study aimed to assess the effectiveness of such a PrEP program among men who have sex with men (MSM). Methods: This retrospective observational study included all MSM who initiated PrEP for the first time between 1 August 2018 and 30 June 2019 in the Fernand-Widal hospital sexual health center, Paris, France. Sociodemographic characteristics, sexual practices including very high risk situations (chemsex practice and/ or sexually transmitted diseases at initiation and/or history of post-exposure prophylaxis [PEP]) and course of care during the first year were described. A novel metric developed by Hendrickson et al., the PrEP success ratio at 12 months, was used to assess effectiveness of PrEP. Results: Among the 125 MSM included in this study, the median age was 33 and most had only male partners. At initiation, 58% were considered at very high risk of HIV infection, mainly due to a history of PEP. During the first year, patients attended a median of 3 visits (Q1-Q3, 2-4). At 12 months, 96% (95% CI, 92.6 to 99.4) of patients had a successful PrEP course, with no reported seroconversion. Conclusions: This experiment highlights the possibility of achieving a high PrEP success ratio among MSM in a real-world setting. The accompanying measures set up in our sexual health center could explain the effectiveness of our PrEP program in comparison with previous studies. Key messages: • In a Parisian sexual health center that developed an HIV PrEP program with a trained paramedic counselor in sexual health, 96% of MSM achieved a successful PrEP course at 12 months. • Accompanying measures for PrEP users could play a key role in achieving high PrEP success among MSM. [ABSTRACT FROM AUTHOR]