Development and implementation of a process evaluation for intervention quality improvement of a community-based behavioral HIV intervention trial in Tanzania.

Aim: Process evaluations for social and behavioral interventions are increasingly important as interventions become more complex and multi-faceted. Conducting process evaluations in low-resource international settings can be challenging. Process evaluations in low-resource international settings can help inform and improve quality of ongoing intervention implementation. We conducted a process evaluation of a cluster-randomized controlled trial to assess the efficacy of a microfinance and health leadership program on sexually transmitted infections and intimate partner violence perpetration among young men in Tanzania. Subject and Methods: Our trial included 1,491 participants and the intervention lasted two years. We collected process data on microfinance loan uptake and repayment, and health leaders' health conversations with peers to monitor intervention reach and dose received. We developed a database system that allowed offline data collection and synced to a central database when internet was accessible. Research staff in the U.S. accessed data from the central database to analyze and create regular implementation reports. Results: Process graphical reports facilitated identification of implementation challenges and enabled us to resolve issues before they worsened. For example, from a group with low microfinance loan repayment we learned area participants perceived the loan to be a grant, and then we clarified the misinformation with participants. Conclusions: The process evaluation helped inform ongoing intervention implementation, including approaches to improve reach and uptake of interventions. Field staff time was protected by systemizing the sharing of data processing and analyses across the global team.

Results from a cluster-randomized trial to evaluate a microfinance and peer health leadership intervention to prevent HIV and intimate partner violence among social networks of Tanzanian men.

Despite calls to engage men in HIV and intimate partner violence (IPV) prevention efforts, effective approaches to reach and engage men in low-resource, high-HIV prevalence settings are limited. We identified and engaged social networks of mostly young men in a study designed to evaluate the efficacy of a combined microfinance and peer health leadership intervention to prevent HIV and IPV. We conducted a cluster-randomized trial among 60 social networks locally referred to as "camps" within Dar es Salaam, Tanzania. Camps were randomly assigned (1:1) to a microfinance and peer health leadership intervention or a control condition that received a brief delayed intervention after the study's conclusion. Allocation was not masked to participants or researchers. Behavioral assessments were conducted at baseline and 30-months post-intervention launch, with biological samples drawn at 30-months to test for sexually-transmitted infections (STIs). Primary outcomes included prevalence of STIs and past-year IPV perpetration. Secondary outcomes included STI sexual risk behaviors and past-year HIV testing. Proximal intervention targets included inequitable gender norm attitudes and hope. A modified Poisson regression approach was used to estimate intention-to-treat intervention effects on outcomes assessed at the 30-month follow-up. We enrolled 1,258 men within 60 camps. Of these men, 1,029 (81.8%) completed the 30-month follow-up. There were no differences by condition in STI prevalence, IPV perpetration, or sexual risk behaviors at the 30-month follow-up. Intervention participants reported greater levels of past-year HIV testing, controlling for baseline testing (aRR 1.13 95% CI 1.005-1.28). They also reported significantly lower levels of inequitable gender norm attitudes (adjusted effect -0.11, 95% CI -0.21-0.003). We successfully engaged and retained social networks of men in this multilevel intervention study. While we did not see an effect on the primary outcomes, our intervention successfully improved HIV testing and reduced inequitable gender norm attitudes.

Engaging Young Men as Community Health Leaders in an STI and Intimate Partner Violence Prevention Trial in Dar es Salaam, Tanzania.

BACKGROUND: This article presents lessons learned from a microfinance and health intervention for young men designed to prevent sexually transmitted infections (STI) and intimate partner violence (IPV) in Dar es Salaam, Tanzania. We describe the different strategies we used to identify and train young men to become change agents within their social networks. DESCRIPTION: A cluster-randomized trial with 60 camps was undertaken in the Kinondoni District of Dar es Salaam. A total of 170 members from 30 intervention camps were trained in March 2014 as popular opinion leaders (POLs), whom we call Camp Health Leaders (CHLs). We describe the process of nominating, training, and retaining CHLs. We also describe our monitoring process, which included the collection of weekly diaries assessing topics discussed, number of peers engaged in conversations, reactions of peers, and challenges faced. LESSONS LEARNED: POLs within naturally existing social networks can be engaged in STI and IPV prevention initiatives. Continuous efforts in retention, such as holding community advisory board (CAB) meetings, developing prevention slogans and t-shirts, and offering small grants to POL teams for intervention activities, were important to keeping POLs engaged in the intervention. Further, booster-training sessions were critical to maintain the message of the project and ensure that the challenges POLs face with implementing the programs were addressed in a timely manner. CONCLUSION: Recruiting POLs in a Tanzanian urban setting and engaging them in STI and IPV reduction through social networks is possible. Training POLs in health information and interpersonal communication is important. Utilizing booster sessions and a variety of retention strategies for POLs in programs that aim to reduce IPV and STI infections among young men is essential to maintain the health leaders' engagement in the intervention as well as intervention fidelity.

Microfinance and health interventions: Factors influencing loan repayment success with young men in Dar es Salaam, Tanzania.

Poverty is associated with numerous poor health outcomes. Youth unemployment in Tanzania is approximately 13.7%, and concentrates in urban areas. These youth lack relevant job skills and access to financial capital. Microfinance continues to be implemented globally to address poverty, and increasingly has been linked to health interventions. Men less frequently are recipients of microfinance loans. We offered microcredit to young men in an area of Dar es Salaam with high poverty as part of a randomised controlled-trial to assess the efficacy of a microfinance and health leadership intervention in preventing STI acquisition. We used mixed methods to understand predictors of successful loan repayment. Our qualitative sub-study showed that leader influence, prior business experience, personal motivation, and planning facilitated repayment. Using a modified Poisson approach, our quantitative analysis showed that successful repayment was associated with business experience, education, increasing number of children, community of residence, percentage of network members trained in business, and repayment success of peer leaders. Our results suggest that enforcing group accountability and repayment rules, offering ongoing training, and using successful entrepreneurs as role models could increase repayment success in similar populations. These strategies could provide financial opportunity for men while minimising risk for microfinance institutions.

Sexual and Social Network Correlates of Willingness to Self-Test for HIV Among Ever-Tested and Never-Tested Men: Implications for the Tanzania STEP Project.

We examined factors associated with HIV self-testing (HIVST) willingness among male ever-testers and never-testers who participated in a midpoint survey of a cluster randomized controlled HIV prevention trial in Dar es Salaam. Linear mixed binary logistic regression models were constructed to examine factors (demographic, HIV risk behavior, and sexual/social network) associated with willingness to self-test. Sixtyseven percent of 301 never-testers were willing to self-test for HIV compared to 72% 577 of ever-testers. Among never-testers, having discussed testing for HIV with a sexual partner was the only factor associated with HIVST willingness (2.36, 95% CI: 1.35-4.15). For evertesters, younger men were less willing to self-test than older men while men with higher education were more willing to self-test than less educated men. Having a moderate/great HIV risk perception decreased the odds of HIVST willingness relative to no risk perception (0.40, 95% CI 0.23-0.70) for ever-testers. Discussing HIV testing with a sexual partner and having been encouraged to test for HIV by a friend were associated with higher odds of being willing to self-test (2.22, 2.23; 95% CI 1.34-3.67, 1.14-4.39, respectively) among ever-testers. These findings suggest that HIVST willingness is highly acceptable among both male ever-testers and never-testers.

Mate Yako Afya Yako: Formative research to develop the Tanzania HIV self-testing education and promotion (Tanzania STEP) project for men.

The purpose of this formative research, guided by the Integrated Behavioral Model, was to assess men's attitudes and personal agency towards HIV self-testing (HIVST) and confirmatory HIV testing in order to inform the development of the Tanzania STEP (Self-Testing Education and Promotion) Project, a peer-based HIV self-testing intervention for young men in Tanzania. Qualitative in-depth interviews were conducted with 23 men in Dar es Salaam, Tanzania who socialize in networks locally referred to as "camps". Men reported privacy, confidentiality, and saving time as the primary reasons for their self-testing interest. Most participants had high perceived control and self-efficacy to self-test and seek confirmatory HIV testing. Nevertheless, men reported concerns related to their ability to perform the test and the potential lack of post-test counseling. Specific recommendations for the intervention included providing HIVST education and pre-test counseling, and using mobile health (mHealth) strategies for participants to reach a healthcare professional for further assistance. The findings suggest that while HIVST is highly acceptable among men in Tanzania, future interventions will need to address the challenges that men may face with HIVST before promoting it as an alternative or supplement to facility-based HIV testing.

Perpetration and Victimization of Intimate Partner Violence Among Young Men and Women in Dar es Salaam, Tanzania.

We describe and compare the baseline rates of victimization and perpetration of three forms of intimate partner violence (IPV)-psychological, physical, and sexual-among sexually active men ( n = 1,113) and women ( n = 226) enrolled in an ongoing cluster-randomized HIV and gender-based violence prevention trial in Dar es Salaam, Tanzania. IPV was measured using a modified version of the World Health Organization Violence Against Women instrument. We assess the degree to which men and women report overlapping forms of IPV victimization and perpetration. Sociodemographic and other factors associated with increased risk of victimization and perpetration of IPV are examined. Within the last 12 months, 34.8% of men and 35.8% of women reported any form of IPV victimization. Men were more likely than women to report perpetrating IPV (27.6% vs. 14.6%, respectively). We also found high rates of co-occurrence of IPV victimization and perpetration with 69.7% of male perpetrators and 81.8% of female perpetrators also reporting victimization during the last year. Among men, having ever consumed alcohol and experiencing childhood violence were associated with increased risk of most forms of IPV. Younger women were more likely to report perpetrating IPV than older women. We found evidence of gender symmetry with regard to most forms of IPV victimization, but men reported higher rates of IPV perpetration than women. Given the substantial overlap between victimization and perpetration reported, our findings suggest that IPV may be bidirectional within relationships in this setting and warrant further investigation. Implications for interventions are discussed.