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1.
Zixin Wang  Tiejian Feng 《AIDS care》2016,28(10):1332-1337
Risk compensation was an important concern of voluntary medical male circumcision (VMMC) promotion campaigns. No study investigated risk compensation following VMMC among male sexually transmitted diseases patients (MSTDP). A cross-sectional survey interviewed 308 uncircumcised MSTDP in Shenzhen, China. 26.9% of them intended to perform at least one of the five types of risk compensation behaviors following VMMC. In the summary stepwise model, provision of incorrect response to HIV/sexually transmitted diseases knowledge items (multivariate odds ratios (ORm)?=?2.30), genital herpes infection (ORm?=?3.19), Risk Reduction Score for Unprotected Sex, and Negative Condom Attitudes Scale (ORm?=?1.13) were significantly associated with behavioral intention to perform at least one type of risk compensation behavior following VMMC. The results provided a framework for developing related interventions. Prevention of risk compensation should be an essential component of VMMC promotion for all MSTDP, irrespective of their intention for VMMC.  相似文献   

2.
Men who have sex with men (MSM) are at increased risk for HIV infection in India, particularly those who engage in transactional sex with other men (i.e., male sex workers; MSW). Despite the need, HIV prevention efforts for Indian MSW are lacking. As in other settings, MSW in India increasingly rely on the use of mobile phones for sex work solicitation. Integrating mobile phone technology into an HIV prevention intervention for Indian MSW may mitigate some of the challenges associated with face-to face approaches, such as implementation, lack of anonymity, and time consumption, while at the same time proving to be both feasible and useful. This is a pilot randomized controlled trial to examine participant acceptability, feasibility of study procedures, and preliminary efficacy for reducing sexual risk for HIV. MSW (N = 100) were equally randomized to: (1) a behavioral HIV prevention intervention integrating in-person and mobile phone delivered HIV risk reduction counseling, and daily, personalized text or voice messages as motivating “cognitive restructuring” cues for reducing condomless anal sex (CAS); or (2) a standard of care (SOC) comparison condition. Both groups received HIV counseling and testing at baseline and 6-months, and completed ACASI-based, behavioral and psychosocial assessments at baseline, 3, and 6 months. Mixed-effects regression procedures specifying a Poisson distribution and log link with a random intercept and slope for month of follow-up was estimated to assess the intervention effect on the primary outcomes: (1) CAS acts with male clients who paid them for sex, and (2) CAS acts with male non-paying sexual partners—both outcomes assessed over the past month. The intervention was both feasible (98% retention at 6-months) and acceptable (>96% of all intervention sessions attended); all intervention participants rated the intervention as “acceptable” or “very acceptable.” A reduction in the reported number of CAS acts with male clients who paid them for sex in the past month was seen in both study conditions. MSW in the intervention condition reported a faster rate of decline in the number of CAS acts with male clients in the past month from the baseline to both the 3-month (B = ?1.20; 95% CI ?1.68, ?0.73; p < 0.0001) and 6-month (B = ?2.44; 95% CI ?3.35, ?1.53; p < 0.00001) assessment visits compared to the SOC condition. Post-hoc contrasts indicated that, at 3 months, participants in the intervention condition reported 1.43 (SD = 0.29) CAS acts with male clients in the past month compared to 4.85 (SD = 0.87) in the control condition (p = 0.0003). Furthermore, at 6 months, the intervention condition participants reported 0.24 (SD = 0.09) CAS acts with male clients in the past month compared to 2.79 (SD = 0.79) in the control condition (p < 0.0001). Findings are encouraging and provide evidence of feasibility and acceptability, and demonstrate initial efficacy (for reducing sexual risk for HIV) of a behavioral HIV prevention intervention for Indian MSW that combines daily, personalized text or voice messages with mobile phone-delivered sexual risk reduction counseling and skills building. Future testing of the intervention in a fully powered randomized controlled efficacy trial is warranted.  相似文献   

3.
Malawi is one of 14 priority countries for voluntary medical male circumcision (VMMC) initiatives with the lowest VMMC uptake. Using data from a study of 269 men accessing VMMC in southern Malawi and latent class analysis, men were classified based on four risk factors: ever tested for HIV, condom use at last sex, having casual/concurrent sexual partners, and using alcohol before sex. Two distinct classes were identified: 8% of men were classified as high risk, while 92% were classified as low/medium risk. Poisson regression modeling indicated that men who had lower education (risk ratio [RR] 1.07, p < 0.05) and were ages 19–26 (RR 1.07, p < 0.05) were more likely to be in the high risk group. The low numbers of men in the high risk category seeking services suggests the need to implement targeted strategies to increase VMMC uptake among such high risk men.  相似文献   

4.
The World Health Organization has recommended the scale-up of voluntary medical male circumcision (VMMC) for HIV prevention in sub-Saharan Africa; however, men are often uninterested in undergoing VMMC. The Spear & Shield project enrolled 668 men and female partners from ten Zambian community health centers into parallel interventions promoting VMMC for HIV prevention or time-matched control conditions. A mediation model was utilized to examine the relationships between changes in women’s acceptance of VMMC and men’s readiness to undergo the procedure. Results demonstrated that, at 12 months post-intervention, a 5.9 % increase in the likelihood of undergoing VMMC among men in the experimental condition could be attributed to increased women’s acceptance. From a public health perspective, involving women in VMMC promotion interventions such as the Spear & Shield project could significantly impact the demand for VMMC in Zambia.  相似文献   

5.
We present the results of the first study of longitudinal change in HIV-associated risk behaviors in men before and after circumcision in the context of a population-level voluntary medical male circumcision (VMMC) program. The behaviors of 1,588 newly circumcised men and 1,598 age-matched uncircumcised controls were assessed at baseline, 6, 12, 18 and 24 months of follow-up. Despite the precipitous decline in perception of high HIV risk among circumcised men (30–14 vs. 24–21 % in controls) and increased sexual activity among the youngest participants (18–24 years; p-time < 0.0001, p-group = 0.96), all specific risk behaviors decreased over time similarly in both groups. The proportion of men reporting condom use at last sex increased for both groups, with a greater increase among circumcised men (30 vs. 6 %). We found no evidence of risk compensation in men following circumcision. Concerns about risk compensation should not impede the widespread scale-up of VMMC initiatives.  相似文献   

6.
To date, there is no research on voluntary medical male circumcision (VMMC) catchment areas or the relationship between distance to a VMMC facility and attendance at a post-operative follow-up visit. We analyzed data from a randomly selected subset of males self-seeking circumcision at one of 16 participating facilities in Nyanza Province, Kenya between 2008 and 2010. Among 1437 participants, 46.7 % attended follow-up. The median distance from residence to utilized facility was 2.98 km (IQR 1.31–5.38). Nearly all participants (98.8 %) lived within 5 km from a facility, however, 26.3 % visited a facility more than 5 km away. Stratified results demonstrated that among those utilizing fixed facilities, greater distance was associated with higher odds of follow-up non-attendance (OR5.01–10km vs. 0–1km = 1.71, 95 % CI 1.08, 2.70, p = 0.02; OR>10km vs. 0–1 km = 2.80, 95 % CI 1.26, 6.21, p = 0.01), adjusting for age and district of residence. We found 5 km marked the threshold distance beyond which follow-up attendance significantly dropped. These results demonstrate distance is an important predictor of attending follow-up, and this relationship appears to be modified by facility type.  相似文献   

7.
Research has established that voluntary medical male circumcision (VMMC) reduces HIV acquisition in heterosexual men by approximately 60%; however, engaging in sexual activity before the wound is healed may attenuate this protective effect. This prospective study included VMMC clients who were circumcised in Kenya between November, 2008 and March, 2010, aged ≥ 18 years, and randomly selected for an interview and genital examination 28-45 days post-VMMC (N = 1,344). At the time of the interview, 91.3% participants were healed. Overall, 30.7% reported engaging in early sexual activity, usually 3-4 weeks post-VMMC. In a multivariable analysis, being married or cohabitating was the strongest predictor of engaging in early sexual activity. Strategies to reduce engaging in sexual activity during the recommended 42-day abstinence period following VMMC should be explored including re-energizing the effort to include female partners in counseling, mass education campaigns, and targeted text messaging programs for VMMC clients.  相似文献   

8.
Young South Africans, especially women, are at high risk of HIV. We evaluated the effects of PREPARE, a multi-component, school-based HIV prevention intervention to delay sexual debut, increase condom use and decrease intimate partner violence (IPV) among young adolescents. We conducted a cluster RCT among Grade eights in 42 high schools. The intervention comprised education sessions, a school health service and a school sexual violence prevention programme. Participants completed questionnaires at baseline, 6 and 12 months. Regression was undertaken to provide ORs or coefficients adjusted for clustering. Of 6244 sampled adolescents, 55.3 % participated. At 12 months there were no differences between intervention and control arms in sexual risk behaviours. Participants in the intervention arm were less likely to report IPV victimisation (35.1 vs. 40.9 %; OR 0.77, 95 % CI 0.61–0.99; t(40) = 2.14) suggesting the intervention shaped intimate partnerships into safer ones, potentially lowering the risk for HIV.  相似文献   

9.
Uncircumcised adolescent males in sub-Saharan Africa are an important group to reach with voluntary medical male circumcision (VMMC) services due to high HIV burden occurring among this age group. Appropriateness of the content and delivery of sexual health and HIV prevention messages to adolescent VMMC clients has not been extensively described. A study was conducted in Tanzania to examine quality, delivery and content of messages provided to adolescent (aged 15–19) and adult (aged 20+) VMMC clients (n = 320). Results show that counseling of mixed age groups during group education lacked selected key messages, compared to more age-homogeneous groups. Additionally, adolescents received more comprehensive information in individual counseling compared to group education. We recommend that health care providers are provided with skills and job aides to assist them to segment VMMC clients by age; provide age-appropriate messages; and increase use of individual counseling as a means to communicate with adolescent clients.  相似文献   

10.
Latino men who have sex with men (MSM) are disproportionately impacted by HIV/AIDS, but few behavioral interventions address their prevention needs. Adaptation of evidence-based interventions is a pragmatic strategy that builds upon lessons learned and has the potential to fill gaps in prevention programming. Yet there are few reports of how transfers are executed and whether effectiveness is achieved. This research reports on the adaptation of VOICES/VOICES, a single-session intervention designed for heterosexual adults, into No Excuses/Sin buscar excuses for Latino MSM. To test the adapted intervention, 370 at-risk Latino MSM were enrolled in a randomized trial. At a three-month follow-up, there was a sharper decrease in unprotected intercourse in the intervention group compared to controls (59 % vs. 39 %, ANOVA p < 0.05, F = 4.10). Intervention participants also reported more condom use at last intercourse (AOR = 1.69; 95 % CI 1.02–2.81, p < 02). Findings support use of adapted models for meeting prevention needs of high-priority populations.  相似文献   

11.
Aim To test, in combination with the nicotine patch, the incremental efficacy of a maximal, tailored behavioral treatment over a minimal treatment for smoking cessation. Design Randomized clinical trial with 6‐month follow‐up. Setting Five methadone maintenance treatment centers in Rhode Island. Participants Three hundred and eighty‐three methadone‐maintained smokers. Intervention Participants were assigned randomly to nicotine patch (8–12 weeks) plus either (1) a baseline tailored brief motivational intervention, a quit date behavioral skills counseling session and a relapse prevention follow‐up session (Max) or (2) brief advice using the National Cancer Institute's 4 As model (Min). An intent‐to‐treat analysis with those lost to follow‐up assumed to smoke was used. Measurements Carbon monoxide (CO)‐confirmed 7‐day point smoking cessation prevalence at 3 and 6 months, and self‐reported numbers of cigarettes smoked per day. Findings Participants had a mean age of 40 years, were 53% male, 78% Caucasian, smoked 26.7 (± 12.2) cigarettes/day and had a mean methadone dose of 95.5 mg. At 3 months, 317 (83%) were reinterviewed; at 6 months, 312 (82%) were reinterviewed. The intent‐to‐treat, 7‐day point prevalence estimate of cessation was 5.2% in the Max group and 4.7% in the Min group (P = 0.81) at 6 months. In logistic models with treatment condition, age, gender, race, Fagerström Test for Nicotine Dependence and cigarettes per day as covariates, males were more likely to be abstinent at 3 months (OR 4.67; P = 0.003) and 6 months (OR 4.01; P = 0.015). Conclusion A tailored behavioral intervention did not increase quit rates over patch and minimal treatment. Smoking cessation rates in methadone‐maintained smokers are low, with men having greater success.  相似文献   

12.
Injection drug use is a major factor in acquiring and transmitting HIV in Vietnam. This analysis aims to present estimates of HIV infection and factors associated with HIV infection among female sex partners (FSP) of MWID in Ho Chi Minh City (HCMC), Vietnam. Cross-sectional surveys were conducted in 2011 and 2013 among males who inject drugs (MWID) who then referred their FSP for a behavioral and biologic survey. In total, 445 MWID and FSPs were enrolled. HIV prevalence among MWID was 50 and 35 % among FSPs. Among FSPs, 60.3 % reported ever using illegal drugs and among those, 72.7 % reported ever injecting illicit drugs. Among FSP, injection drug for >1 year [adjusted Odds Ratio (aOR), 95 % CI 2.94, 1.19–7.26), p value = <0.001] and having a male partner infected with HIV [(aOR 3.35: 1.97–5.69), p value = <0.001] were associated with HIV infection. The prevalence of HIV infection is high among FSP of MWID in HCMC and is highly associated with the injection drug use behavior of the FSP. Harm-reduction intervention programs that focus on the MWID-FSP couple or directly on the FSPs are required.  相似文献   

13.
Controlled studies show that HIV risk reduction counseling significantly increases condom use, reduces unprotected sex and prevents sexually transmitted infections. Nevertheless, without evidence of reducing HIV incidence, these interventions are generally discarded. One trial, the EXPLORE study, was designed to test whether ten sessions of risk reduction counseling could impact HIV incidence among men who have sex with men in six US cities. Based on epidemiologic models to define effective HIV vaccines, a 35 % reduction in HIV incidence was set a priori as the benchmark of success in this behavioral intervention trial. Results demonstrated a significant effect of the intervention, with more than a 35 % reduction in HIV incidence observed during the initial 12–18 months following counseling. Over an unprecedented 48-month follow-up, however, the effect of counseling on HIV incidence declined to 18 %. The current review examined how the scientific literature has thus far judged the outcomes of the EXPLORE study as well as the policy implications of these judgments. We identified 127 articles that cited the EXPLORE study since its publication. Among articles that discuss the HIV incidence outcomes, 20 % judged the intervention effective and 80 % judged the intervention ineffective. The overwhelmingly negative interpretation of the EXPLORE study outcomes is reflected in public policies and prevention planning. We conclude that using a vaccine standard to define success led to a broad discrediting of the benefits of behavioral counseling and, ultimately, adversely impacted policies critical to the field of HIV prevention.  相似文献   

14.
This randomized behavioral trial examined whether youth living with HIV (YLH) receiving cell-phone support with study funded phone plans, demonstrated improved adherence and viral control during the 24 week intervention and 24 weeks post-intervention compared to controls. Monday through Friday phone calls confirmed medications were taken, provided problem-solving support, and referred to services to address adherence barriers. Of 37 participants (ages 15–24), 62 % were male and 70 % were African American. Self-reported adherence was significantly higher in the intervention group compared to the control at 24 and 48 weeks for the past month (P = 0.007) and log 10 HIV VL was significantly lower at both 24 weeks (2.82 versus 4.52 P = 0.002) and 48 weeks (3.23 versus 4.23 P = 0.043). Adherence and viral load showed medium to large effect sizes across the 48 week study. This is the first study to demonstrate sustained clinically significant reductions in HIV VL using youth friendly technology.  相似文献   

15.
Voluntary medical male circumcision (VMMC) has been demonstrated to reduce the transmission of HIV by 60%. Scaling up VMMC services requires that they be of high quality, socially accepted, and effective. We evaluated an intervention aimed at improving VMMC standards adherence and patient follow-up rates in nine facilities in Uganda. We also qualitatively explored why some men return for follow-up care and others do not. The completeness and quality of clinical documentation was poor at baseline, but significantly improved at endline. We observed significant improvements in management systems; supplies, equipment, and environment; and monitoring and evaluation. Due to the volume of missing data, results were less clear for registration, group education, and information, education and communication; individual counselling and HIV testing; and infection prevention. Significant improvements were also observed in follow-up rates at 48 hours and 7 days, and 6 weeks. Interviews revealed the importance of peers, including female partners, in deciding to get circumcised and in seeking follow-up care. Among the men who did not return for follow-up services, most reported they had no problems and did not see it as necessary. For those who did have mild or moderate adverse events, follow-up care was often sought at a facility closer to the patients’ home rather than the circumcising facility. However, information systems were unable to capture this. Applying improvement approaches to VMMC services can promote improved standards adherence and follow-up rates and should be integrated into scale-up plans.  相似文献   

16.
Following the endorsement by the World Health Organization (WHO) and the Joint United Nations Programme on HIV/AIDS (UNAIDS) of male circumcision as an additional strategy to HIV prevention, initiatives to introduce safe, voluntary medical male circumcision (VMMC) services commenced in 2008 in several sub-Saharan African communities. Information regarding perceptions of circumcision as a method of HIV prevention, however, is largely limited to data collected before this important endorsement and the associated increase in the availability of VMMC services. To address this, we completed a community-based survey of male circumcision (MC) perceptions in the major non-circumcising community in Kenya, which is the current focus of VMMC programs in the country. Data was collected between November 2008 and April 2009, immediately before VMMC program scale-up commenced. Here we present results limited to women (n = 1088) and uncircumcised males (n = 460) to provide insight into factors contributing to the acceptability and preference for MC in those targeted by VMMC programs. Separate multivariable models examining preference for circumcision were defined for married men, unmarried men, and women. Belief in the protective effect of circumcision on HIV risk was strongly associated with preference for MC in all models. Other important factors included education, perceived improvement in sexual pleasure, and perceptions of impact on condom utilization. Identified barriers to circumcision were the belief that circumcision was not part of the local culture, the perception of a long healing period following the procedure, the lack of a specific impetus to seek out services, and the general fear of pain associated with becoming circumcised. A minority of participants expressed beliefs suggesting that behavioral risk compensation with increased MC prevalence and awareness is a possibility. This work describes the early impact of a large-scale VMMC program on beliefs and behaviors regarding MC and HIV risk. It is hoped that our findings may offer guidance into anticipating potential impacts that similar programs may observe in populations throughout Eastern Africa.  相似文献   

17.
Local beliefs and practices about voluntary medical male circumcision (VMMC) may influence uptake and effectiveness. Data were gathered through interviews with 40 people from four ethnically mixed fishing communities in Uganda. Some men believed that wound healing could be promoted by contact with vaginal fluids while sex with non-regular partners could chase away spirits – practices which encouraged unsafe sexual practices. Information given by providers stressed that VMMC did not afford complete protection from sexually-transmitted infections, however, a number of male community members held the view that they were fully protected once circumcised. Both men and women said that VMMC was good not just for HIV prevention but also as a way of maintaining hygiene among the men. The implementation of VMMC in high-HIV prevalence settings needs to take account of local beliefs about circumcision, working with local religious/social group leaders, women and peers in the roll-out of the intervention.  相似文献   

18.
ABSTRACT

Using a deterministic compartmental modeling procedure to fit prevalence from 2005–2015, we projected new HIV cases during 2016–2026 under different coverage rates ranging from 0.0001 (at baseline) to 0.15 (an optimistic assumption) with simulations on varying transmission rates, model calibration to match historical data, and sensitivity analyses for different assumptions. Compared with the baseline (λ?=?0.0001), we found the new HIV cases would reduce with the increase of coverage rates of the voluntary medical male circumcision (VMMC) among men who have sex wtih men (MSM). The higher the coverage rate, the lower the new HIV incidence would be. As one of the first studies to model the potential impact of VMMC among MSM in China, our model suggested a modest to the significant public health impact of VMMC. Even at just 15% VMMC annual uptake rate, the reduction in new infections is substantial. Therefore, there is a strong need to determine the efficacy of VMMC among MSM, to improve the evidence base for its potential use among MSM in low circumcision settings. Only then can policymakers decide whether to incorporate VMMC into a package of HIV prevention interventions targeting MSM.  相似文献   

19.
To compare the efficacy of the addition of clarithromycin (CM) to methotrexate (MTX) and methylprednisolone (MP) in active rheumatoid arthritis (RA). 32 patients with RA consecutively randomized. Control group: sixteen patients treated for 24 months with MTX 10–15 mg i.m. weekly and MP 4–6 mg daily. CM group: sixteen patients treated with MTX 10–15 mg i.m. weekly and MP 4–6 mg daily for 24 months; CM therapy added in the first month (500 mg twice a day for the first 15 days followed by 500 mg a day for the remaining 15 days). Evaluation of the improvement following ACR criteria was performed at months 1 (primary endpoint), 3 and 6. Patients were furthermore observed after 12, 18 and 24 months from the study beginning. At month 1, following ACR70 improvement criteria, we found a significant additive value in CM group (10/16 = 63 % vs 4/16 = 25 %, p = 0.033—chi-square test). After discontinuation of CM, the difference between groups was anymore evident (month 3: CM group 10/16 = 63 % vs control group 9/16 = 56 %). At month 24, 7/16 (44 %) in control group and 12/16 (75 %) in CM group completed the follow-up. The addition of CM to MTX and MP can induce the remission ACR 70 in the majority of RA patients within 4 weeks, while MTX and MP alone need about 3 months to achieve the same result.  相似文献   

20.
We developed an innovative home-based HIV self-testing (HIVST) service that included mailing of a free HIVST kit, and providing online real-time instructions and pre-test/post-test counseling (HIVST-OIC). The present parallel-group and non-blinded randomized controlled trial was conducted to evaluate the efficacy of promoting HIVST-OIC in increasing HIV testing rate among 430 men who have sex with men (MSM), with access to online live-chat applications in Hong Kong. At month 6, as compared to the control group, the intervention group reported significantly higher prevalence of HIV testing of any type (89.8 vs. 50.7%; relative risk (RR): 1.77; p < 0.001). Among those who have taken up any HIV testing in the last six months, significant between-group difference was found in multiple male sex partnerships (34.2 vs. 47.7%, RR: 0.72; p = 0.021). HIVST-OIC has a strong potential in increasing prevalence of HIV testing and reducing sexual risk behaviors. Implementation research is warranted.  相似文献   

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