John Kinuthia Archives - Implementation Science at UW

✪ “When he is around, I’ll take the PrEP, but when he is not, I will not take PrEP”: key influences on PrEP use decisions among women attending family planning clinics in Kenya

Abstract:

Background

Women of childbearing age in sub-Saharan Africa (SSA) face a disproportionately high risk of HIV acquisition. Although oral PrEP has been universally scaled up for individuals at significant risk of HIV, its uptake and sustained use remain suboptimal. Understanding PrEP use decisions offers insights into context-specific barriers and facilitators to its utilization.

Methods

From September to November 2023, we conducted a qualitative study nested in a larger prospective, open-label clinical trial (FP-Plus). We conducted in-depth interviews (IDIs) with younger women (ages 15–24) and older women (ages ≥25) who declined, delayed, discontinued, or restarted PrEP during the study. IDIs were conducted at two FP clinics by trained Kenyan social scientists and were audio recorded, translated, and transcribed. We analyzed data using inductive and deductive thematic analysis through the lens of the theory of planned behavior (TPB) to explore experiences, beliefs, and rationale among women who made various PrEP decisions.

Results

We interviewed 64 women, including 40 younger women and 24 older women, all of whom declined, delayed, discontinued, or restarted PrEP (n = 16 women/category). The median age of these women was 24 years (IQR, 23–30). The majority of participants (86%, 55/64) were using family planning methods, primarily injectables (42%, 23/64). PrEP discontinuation or restart was primarily influenced by changes in HIV risk dynamics. Agency and perceived HIV risk were pivotal factors in PrEP use decisions, shaping participants’ ability to practice effective prevention adherence (TPB: perceived behavioral control). Women who declined PrEP cited a lack of autonomy, partner influence, and insufficient information (TPB: social and subjective norms). Low self-efficacy influenced decisions to delay or decline PrEP (TPB: behavioral beliefs and attitudes). In addition, challenges with PrEP pill size, taste, and texture were perceived as barriers to swallowing pills among all groups of women. Participants expressed a preference for alternative PrEP formulations, such as injectable PrEP, due to perceived ease of use, privacy, and potential to support adherence.

Conclusions

PrEP discontinuation and restart cycles largely reflected changes in HIV risk. Women who decline or delay PrEP may benefit from personalized support to improve their autonomy, recognizing that HIV risk persists during periods of PrEP delay.

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

✪ Impact of a stakeholder selected implementation strategy package – fast tracking, provider re-training, and co-location – on PrEP implementation for pregnant women in antenatal care clinics in western Kenya

Abstract:

Background

Pre-exposure prophylaxis (PrEP) is recommended for HIV prevention in pregnant and postpartum women at substantial ongoing risk for HIV. In resource-limited settings, there exist gaps in the integration of PrEP into antenatal care.

Methods

We conducted a difference-in-differences analytic approach (3 months pre- and 3 months post) between January 2022 and July 2022 in 8 facilities (4 intervention and 4 comparison) in western Kenya. During the 6-month period, we tested a combination of 2 stakeholder selected implementation strategies – retraining health providers and fast tracking PrEP clients– to improve PrEP delivery. All study facilities dispensed PrEP in the Maternal and Child health clinics (MCH). We evaluated absolute changes in: PrEP penetration, PrEP fidelity, client PrEP knowledge, client satisfaction, and client waiting and service times as outcomes specified a priori while PrEP offer and HIV testing were outcomes specified post hoc. We measured acceptability and appropriateness by providers of the implementation strategies using AIM and IAM respectively.

Results

We observed statistically significant improvements in PrEP penetration and PrEP offer (p < 0.05) and non-significant improvements in fidelity. PrEP penetration increased 6 percent points (p = 0.002), PrEP offer increased nearly 6 percentage points (p = 0.002), and PrEP fidelity increased 4 percentage points (p = 0.202) in intervention vs comparison facilities. Client PrEP knowledge increased 0.45 out of 7 total points (p < 0.001) and PrEP screening increased 13 percentage points (p = 0.001). We observed no significant changes in service time (0.13-min increase; p = 0.249), waiting time (0.03-min decrease; p = 0.796), or client satisfaction (0.04/24 total point decrease; p = 0.849) in intervention vs comparison facilities. HIV testing did not significantly change (7 percentage point decrease, p = 0.305). The implementation strategy bundle was deemed appropriate and acceptable by the providers (appropriateness: 18.5/20; acceptability: 18.5/20). Overall, the implementation strategy bundle was associated with larger increases in implementation outcomes among women receiving a visit other than their first ANC visit, as well as among sites without stockouts of HIV test kits.

Conclusions

A stakeholder-selected implementation strategy bundle that included retraining healthcare workers, fast tracking PrEP clients to reduce waiting time, and PrEP dispensing in MCH improved several implementation outcomes without significantly affecting waiting time or reducing service time.

Contributions to the literature

Evidence is sparse on effective implementation strategies that focus on structural- and provider-level barriers to enhance delivery of integrated care in resource-limited settings.
Stakeholder-selected strategies are hypothesized to have a better fit to local context and potentially be more effective than externally selected strategies.
We tested a package of two stakeholder-selected implementation strategies – retraining health providers, fast tracking PrEP clients in a difference-in-differences study in 8 clinics in Kenya.
The package was associated with significant improvements in PrEP penetration, PrEP offer, PrEP knowledge, and PrEP screening. It was not associated with significant changes in PrEP fidelity, HIV testing, service time, waiting time, or client satisfaction.
The improvement associated with the package was most pronounced among clinics that did not experience substantial stockouts of supplies, suggesting that implementation strategies are not sufficient to overcome gaps in basic resourcing in the presence of critical events.

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

✪ An implementation strategy package (video education, HIV self-testing, and co-location) improves PrEP implementation for pregnant women in antenatal care clinics in western Kenya

Abstract:

Background

Pre-exposure prophylaxis (PrEP) is recommended by the World Health Organization and the Kenyan Ministry of Health for HIV prevention in pregnancy and postpartum for women at risk for HIV. Integration of PrEP into antenatal care is promising, but delivery gaps exist in the face of healthcare provider shortages in resource-limited settings.

Methods

Between May and November 2021, we conducted a difference-in-differences study (3 months pre-intervention data collection and 3 months post-intervention data collection) analyzing four intervention facilities, where the strategies were implemented, and four comparison facilities, where no strategies were implemented. We tested a combination of three implementation strategies—video-based PrEP information in the waiting bay, HIV self-testing, and dispensing of PrEP in the antenatal care rooms—to improve PrEP delivery. We compared absolute changes in the proportion of antenatal attendees screened for PrEP (PrEP penetration), the proportion receiving all PrEP-specific steps in a visit (HIV testing, risk screening, and PrEP counseling) (PrEP fidelity), and client PrEP knowledge, client satisfaction, and waiting time and service time (a priori outcomes); post hoc, we compared the proportion offered PrEP (PrEP offer) and completing HIV testing. We measured provider perceptions of the acceptability and appropriateness of the implementation strategies.

Results

We observed significant improvements in PrEP penetration, PrEP offer, satisfaction, and knowledge (p < 0.05) and improvements in fidelity that trended towards significance (p = 0.057). PrEP penetration increased 5 percentage points (p = 0.008), PrEP fidelity increased 8 percentage points (p = 0.057), and PrEP offer increased 4 percentage points (p = 0.003) in intervention vs. comparison facilities. Client PrEP knowledge increased by 1.7 out of 6 total points (p < 0.001) and client satisfaction increased by 0.7 out of 24 total points (p = 0.003) in intervention vs. comparison facilities. We observed no changes in service time (0.09-min decrease; p = 0.435) and a small increase in waiting time (0.33-min increase; p = 0.005). HIV testing among those eligible did not change (1.5 percentage point decrease, p = 0.800). Providers felt the implementation strategies were acceptable and appropriate (median acceptability: 20/20; median appropriateness: 19.5/20). However, absolute levels of each step of the PrEP cascade remained suboptimal

Conclusions

An implementation strategy package with video information, HIV self-testing, and co-location of medication dispensing enhanced PrEP delivery across several implementation outcomes and client satisfaction, while not substantially increasing wait time or decreasing provider-client contact time.

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

✪ Defining gaps in pre-exposure prophylaxis delivery for pregnant and post-partum women in high-burden settings using an implementation science framework

Authors:

Jillian Pintye, Dvora L. Joseph Davey, Anjuli D. Wagner, Grace John-Stewart, Rachel Baggaley, Linda-Gail Bekker, Connie Celum, Benjamin H. Chi, Thomas J. Coates, Allison K. Groves, Jessica E. Haberer, Renee Heffron, John Kinuthia, Lynn T. Matthews, James A. McIntyre, Dhayendre Moodley, Lynne M. Mofenson, Nelly Mugo, Andrew Mujugira, Landon Myer, Steven Shoptaw, Lynda Stranix-Chibanda, Jared M. Baeten, for the PrEP in Pregnancy Working Group

^{University of Washington affiliated authors are displayed in bold.}

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Published: August 2020

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Background

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Read the full text in the open access journal Implementation Science Communications

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Contributions to the literature

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Read the full text in the open access journal Frontiers in Reproductive Health

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Read the full text open access in the subscription access journal The Lancet: HIV

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Read the full text open access in the subscription journal JAIDS