Collin Mangenah

Biographic Data

ID7730083
NAMECollin Mangenah
GIVEN NAMESCollin
FAMILY NAMEMangenah
SIGNATUREMANGENAH C
AFFILIATIONSCentre for Sexual Health and HIV AIDS Research
ORCID0000-0002-0733-0622
VERIFIEDYes
TOTAL WORKS11
TOTAL CITATIONS0
WORKS AS AUTHOR11
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2017
LATEST PUBLICATION YEAR2025
H-INDEX0

  • Cost-effectiveness of Zvandiri, a community-based support intervention to reduce virological failure in adolescents living with HIV in Zimbabwe

    Open AccessCollin Mangenah, Webster Mavhu et al.ARTICLEPLOS Global Public Health2025

    Improving antiretroviral therapy (ART) adherence among adolescents living with HIV (ALHIV) improves outcomes, but with resource implications. We conducted a cost-effectiveness analysis extrapolating the costs and benefits of a community-based peer-support intervention (Zvandiri) among ALHIV in Zimbabwe. We used a de-novo multistate Markov decision-analytic model that simulated Zvandiri lifetime costs and benefits on viral suppression, death rates…

  • Provider costs of professional Covid-19 rapid antigen testing in low-income settings

    Open AccessCollin Mangenah, Lucky G Ngwira et al.ARTICLEPLOS Global Public Health2025

    World Health Organization recommends antigen rapid diagnostic tests (RDT) as point of care tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in suspected outbreaks when polymerase-chain-reaction testing is not accessible; to trace the extent of outbreaks; and in areas with widespread community transmission. Annual economic costs were estimated for professional SARS-CoV-2 testing as part of several COVID-19 testing use cases i…

  • Innovative demand creation strategies to increase voluntary medical male circumcision uptake

    Open AccessWebster Mavhu, Melissa Neuman et al.ARTICLEBMJ Global Health2021

    INTRODUCTION: Reaching men aged 20-35 years, the group at greatest risk of HIV, with voluntary medical male circumcision (VMMC) remains a challenge. We assessed the impact of two VMMC demand creation approaches targeting this age group in a randomised controlled trial (RCT). METHODS: We conducted a 2×2 factorial RCT comparing arms with and without two interventions: (1) standard demand creation augmented by human-centred design (HCD)-informed app…

  • Community-based HIV self-testing

    Open AccessEuphemia Sibanda, Melissa Neuman et al.ARTICLEBMJ Global Health2021

    BACKGROUND: HIV self-testing (HIVST) requires linkage to post-test services to maximise its benefits. We evaluated effect of supply-side incentivisation on linkage following community-based HIVST and evaluated time-trends in facility-based antiretroviral therapy (ART) initiations. METHODS: From August 2016 to August 2017 community-based distributors (CBDs) in 38 rural Zimbabwean communities distributed HIVST door-to-door in 19-25 day campaigns. C…

  • Comparison of community-led distribution of HIV self-tests kits with distribution by paid distributors

    Open AccessEuphemia Sibanda, Collin Mangenah et al.ARTICLEBMJ Global Health2021

    BACKGROUND: We compared community-led versus an established community-based HIV self-testing (HIVST) model in rural Zimbabwe using a cluster-randomised trial. METHODS: Forty village groups were randomised 1:1 using restricted randomisation to community-led HIVST, where communities planned and implemented HIVST distribution for 4 weeks, or paid distribution (PD), where distributors were paid US$50 to distribute kits door-to-door over 4 weeks. Indi…

  • Relative efficiency of demand creation strategies to increase voluntary medical male circumcision uptake

    Open AccessCollin Mangenah, Webster Mavhu et al.ARTICLEBMJ Global Health2021

    BACKGROUND: Supply and demand-side factors continue to undermine voluntary medical male circumcision (VMMC) uptake. We assessed relative economic costs of four VMMC demand creation/service-delivery modalities as part of a randomised controlled trial in Zimbabwe. METHODS: Interpersonal communication agents were trained and incentivised to generate VMMC demand across five districts using four demand creation modalities (standard demand creation (SD…

  • Costs of integrating HIV self-testing in public health facilities in Malawi, South Africa, Zambia and Zimbabwe

    Open AccessLinda Sande, Linda Alinafe Sande et al.ARTICLEBMJ Global Health2021

    INTRODUCTION: As countries approach the UNAIDS 95-95-95 targets, there is a need for innovative and cost-saving HIV testing approaches that can increase testing coverage in hard-to-reach populations. The HIV Self-Testing Africa-Initiative distributed HIV self-test (HIVST) kits using unincentivised HIV testing counsellors across 31 public facilities in Malawi, South Africa, Zambia and Zimbabwe. HIVST was distributed either through secondary (partn…

  • Modelling costs of community-based HIV self-testing programmes in Southern Africa at scale

    Open AccessMarc d’Elbée, Gabriela B Gomez et al.ARTICLEBMJ Global Health2021

    BACKGROUND: Following success demonstrated with the HIV Self-Testing AfRica Initiative, HIV self-testing (HIVST) is being added to national HIV testing strategies in Southern Africa. An analysis of the costs of scaling up HIVST is needed to inform national plans, but there is a dearth of evidence on methods for forecasting costs at scale from pilot projects. Econometric cost functions (ECFs) apply statistical inference to predict costs; however, …

  • Efficiency in PrEP Delivery

    Open AccessCollin Mangenah, Definate Nhamo et al.ARTICLEAIDS and Behavior2021

    Although oral PrEP is highly effective at preventing HIV acquisition, optimizing continuation among beneficiaries is challenging in many settings. We estimated the costs of delivering oral PrEP to populations at risk of HIV in seven clinics in Zimbabwe. Full annual economic costs of oral PrEP initiations and continuation visits were estimated from the providers' perspective for a six-clinic NGO network and one government SGBV clinic in Zimbabwe (…

  • Costs of accessing HIV testing services among rural Malawi communities

    Open AccessLinda Sande, Hendramoorthy Maheswaran et al.ARTICLEAIDS Care2018

    HIV testing is free in Malawi, but users may still incur costs that can deter or delay them accessing these services. We sought to identify and quantify these costs among HIV testing service clients in Malawi. We asked residents of communities participating in a cluster randomised trial investigating the impact of HIV self-testing about their past HIV testing experiences and the direct non-medical and indirect costs incurred to access HIV testing…

  • Unpacking early infant male circumcision decision-making using qualitative findings from Zimbabwe

    Open AccessWebster Mavhu, Karin Hatzold et al.ARTICLEBMC International Health and…2017

    BACKGROUND: Early infant male circumcision (EIMC) has been identified as a key HIV prevention intervention. Exploring the decision-making process for adoption of EIMC for HIV prevention among parents and other key stakeholders is critical for designing effective demand creation interventions to maximize uptake, roll out and impact in preventing HIV. This paper describes key players, decisions and actions involved in the EIMC decision-making proce…