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Implementation Science at UW

Keywords: Beatrice Wamuti

✪ Factors influencing community demand for assisted partner services for HIV in western Kenya: a multilevel qualitative analysis

Authors:

Mercy Owuor, Beatrice Wamuti, David A Katz, Wenjia Liu, Harison Lagat, Edward Kariithi, Brienna Naughton, Hanley Kingston, Mary Mugambi, Rose Bosire, Sarah Masyuko, Carey Farquhar, and Bryan J Weiner

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: March 2025

Read the full text in the open access journal BMJ Open

Abstract:

Objectives

This study explores factors affecting community-level demand for assisted partner services (APS) and HIV testing services (HTS) in western Kenya.

Design

This is a multilevel qualitative analysis conducted as part of the APS Scale-up Study, a hybrid type 2 implementation-effectiveness study of APS integrated within routine HTS. For this analysis, in-depth phone interviews assessed demand for APS and factors influencing decisions to participate in APS.

Setting

Participants were recruited from eight healthcare facilities and (for APS stakeholders) from affiliated healthcare institutions in western Kenya (Kisumu and Homabay). Interviews were conducted by phone in 2019 and 2020.

Participants

67 participants were interviewed: 14 APS providers, 16 female index clients, 17 male sexual partners and 20 community members. Participants were recruited using criteria-based purposive sampling to represent different types of facilities and to include indexes who named different numbers of partners and stakeholders representing all Kenyan healthcare system levels.

Results

Collectively, participants perceived that demand and uptake of APS could be impacted by multiple stigmas related to HIV, sexual behaviours and identities; long clinical wait times; certain gender norms and expectations; and fear of relationship dissolution, loss of financial support and intimate partner violence. However, different stakeholder groups generally focused on different factors; women focused more on gender dynamics and family roles; male sexual partners on stigma and structural barriers; HTS providers focused on HIV testing accessibility; and community-level stakeholders focused on low community awareness of APS.

Conclusions

Stigma reduction, awareness about APS, creation of male entry points at the facility level and provision of social support mechanisms have the potential to increase demand for APS.

Data availability statement

Data are available upon reasonable request. The datasets generated and/or analysed during the current study are not publicly available because some interview transcripts may contain sensitive individual information; however, they can be made available from the corresponding author on reasonable request.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Providing HIV-assisted partner services to partners of partners in western Kenya: an implementation science study

Authors:

Monisha Sharma, Barbara Wanjiku Mambo, Hanley Kingston, George Otieno, Sarah Masyuko, Harison Lagat, David A. Katz, Beatrice Wamuti, Paul Macharia, Rose Bosire , Mary Mugambi, Edward Kariithi, and Carey Farquhar

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: July 2024

Read the full text in the open access Journal of the International AIDS Society

Abstract:

Introduction

Assisted partner services (APS), or exposure notification and HIV testing for sexual partners of persons diagnosed HIV positive (index clients), is recommended by the World Health Organization. Most APS literature focuses on outcomes among index clients and their partners. There is little data on the benefits of providing APS to partners of partners diagnosed with HIV.

Methods

We utilized data from a large-scale APS implementation project across 31 facilities in western Kenya from 2018 to 2022. Females testing HIV positive at facilities were offered APS; those who consented provided contact information for all male sexual partners in the last 3 years. Male partners were notified of their potential HIV exposure and offered HIV testing services (HTS). Males newly testing positive were also offered APS and asked to provide contact information for their female partners in the last 3 years. Female partners of male partners (FPPs) were provided exposure notification and HTS. All participants with HIV were followed up at 12 months post-enrolment to assess linkage-to antiretroviral treatment (ART) and viral suppression. We compared HIV positivity, demographics and linkage outcomes among female index clients and FPPs.

Results

Overall, 5708 FPPs were elicited from male partners, of whom 4951 received HTS through APS (87% coverage); 291 FPPs newly tested HIV positive (6% yield), an additional 1743 (35.2%) reported a prior HIV diagnosis, of whom 99% were on ART at baseline. At 12 months follow-up, most FPPs were taking ART (92%) with very few adverse events: <1% reported intimate partner violence or reported relationship dissolution. FPPs were more likely than female index clients to report HIV risk behaviours including no condom use at last sex (45% vs. 30%) and multiple partners (38% vs. 19%).

Conclusions

Providing HIV testing via APS to FPP is a safe and effective strategy to identify newly diagnosed females and achieve high linkage and retention to ART and can be an efficient means of identifying HIV cases in the era of declining HIV incidence. The high proportion of FPPs reporting HIV risk behaviours suggests APS may help interrupt community HIV transmission via increased knowledge of HIV status and linkage to treatment.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Using Assisted Partner Services for HIV Testing and the Treatment of Males and Their Female Sexual Partners: Protocol for an Implementation Science Study

Authors:

Edward Kariithi, Monisha Sharma, Emily Kemunto, Harison Lagat, George Otieno, Beatrice M. Wamuti, David A. Katz, Christopher Obong'o, Paul Macharia, Rose Bosire, Sarah Masyuko, Mary Mugambi, Carol E. Levin, Wenjia Liu, Unmesha Roy Paladhi, Bryan J. Weiner, & Carey Farquhar

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: May 2021

Read the full text in the open access journal JMIR Research Protocols
BACK TO THE ARCHIVE

Abstract:

Background

Despite the effective scale-up of HIV testing and treatment programs, only 75% of people living with HIV (PLWH) globally know their status, and this rate is lower among men. This highlights the importance of implementing HIV testing and linkage interventions with a high uptake in this population. In a cluster randomized controlled trial conducted in Kenya between 2013 and 2015, we found that assisted partner services (APS) for HIV-exposed partners of newly diagnosed PLWH safely reached more HIV-exposed individuals with HIV testing compared with client referral alone. However, more data are needed to evaluate APS implementation in a real-world setting.

Objective

This study aims to evaluate the effectiveness, acceptability, fidelity, and cost of APS when integrated into existing HIV testing services (HTS) in Western Kenya.

Methods

Our study team from the University of Washington and PATH is integrating APS into 31 health facilities in Western Kenya. We are enrolling females newly diagnosed with HIV (index clients) who consent to receiving APS, their male sexual partners, and female sexual partners of male sexual partners who tested HIV positive. Female index clients and sexual partners testing HIV positive will be followed up at 6 weeks, 6 months, and 12 months postenrollment to assess linkage to care, antiretroviral therapy initiation, and HIV viral load suppression. We will evaluate the acceptability, fidelity, and cost of real-world implementation of APS via in-depth interviews conducted with national, county, and subcounty-level policy makers responsible for HTS. Facility health staff providing HTS and APS, in addition to staff working with the study project team, will also be interviewed. We will also conduct direct observations of facility infrastructure and clinical procedures and extract data from the facilities and county and national databases.

Results

As of March 2020, we have recruited 1724 female index clients, 3201 male partners, and 1585 female partners. We have completed study recruitment as well as 6-week (2936/2973, 98.75%), 6-month (1596/1641, 97.25%), and 12-month (725/797, 90.9%) follow-up visits. Preliminary analyses show that facilities scaling up APS identify approximately 12-18 new HIV-positive males for every 100 men contacted and tested. We are currently completing the remaining follow-up interviews and incorporating an HIV self-testing component into the study in response to the COVID-19 pandemic.

Conclusions

The results will help bridge the gap between clinical research findings and real-world practice and provide guidance regarding optimal strategies for APS integration into routine HIV service delivery.

International Registered Report Identifier (IRRID)

DERR1-10.2196/27262

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

Impact of the COVID-19 Pandemic on HIV Testing and Assisted Partner Notification Services, Western Kenya

Authors:

Harison Lagat, Monisha Sharma, Edward Kariithi, George Otieno, David Katz, Sarah Masyuko, Mary Mugambi, Beatrice Wamuti, Bryan Weiner & Carey Farquhar

University of Washington affiliated authors are displayed in bold.

Subscription Required for Full Text Access

Published: June 2020]

Read the full text in the subscription access journal AIDS and Behavior