Malawi Archives - Implementation Science at UW

✪ “If he returns, receive him because he has realized that he needs assistance”: A qualitative study exploring preferences for retention on antiretroviral therapy support in Malawi among Lighthouse Clinic clients

Abstract:

Introduction

Retention of people living with HIV (PLHIV) on antiretroviral therapy (ART) is critical. Retention is not static: clients cycle in and out of care over the course of treatment. Retention support is also evolving, with interventions like mobile health (mHealth) gaining traction. We aimed to explore ART clients’ perspectives and recommend strategies for improved retention support including a two-way-texting (2wT) mHealth intervention in two clinics in Malawi.

Materials and methods

We conducted focus group discussions (FGDs) with PLHIV on ART receiving 2wT or standard of care (SoC) retention support to understand client perspectives. FGDs were audio-recorded in Chichewa, translated and transcribed into English. We used the RE-AIM implementation science framework to report findings on the reach, effectiveness, adoption, implementation, and maintenance potential of retention interventions considering individual, clinic/organization, and community factors. Through rapid qualitative analysis, we identified key themes and subthemes.

Results

Ten FGDs were conducted with 89 ART clients (aged ≥18 years; 55% female): four FGDs among 2wT participants and six among SoC participants. Few differences were observed between 2wT and SoC clients. All clients appreciated accessing at least one form of support and recommended continuous assistance, regardless of age, sex, or duration on ART. Clients wished to be encouraged by other PLHIV to allay common fears. Groups discussed the need for intensified support to retain young clients or those out of care longer. Individual responsibility was identified as necessary, but insufficient, to improve retention: respondents desired a more positive clinic environment to encourage persistence in care. Fear of stigma, unintended status disclosure, and negative interactions with clinic staff prevent some clients from returning to care.

Conclusion

PLHIV want differentiated, continuous retention support from other PLHIV coupled with a positive clinic environment to promote retention and reengagement in care. As differentiated retention support is expensive, consideration of cost, feasibility, and sustainability is needed.

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

✪ Looking under the hood of a hybrid two-way texting intervention to improve early retention on antiretroviral therapy in Malawi: an implementation fidelity evaluation

Abstract:

Background

While key to interpreting findings and assessing generalizability, implementation fidelity is underreported in mobile health (mHealth) literature. We evaluated implementation fidelity of an opt-in, hybrid, two-way texting (2wT) intervention previously demonstrated to improve 12-month retention on antiretroviral therapy (ART) among people living with HIV (PLHIV) in a quasi-experimental study in Lilongwe, Malawi.

Methods

Short message service (SMS) data and ART refill visit records were used to evaluate adherence to 2wT content, frequency and duration through the lens of the Conceptual Framework for Implementation Fidelity. Message delivery and 2wT participant interactions were considered across four core 2wT components: 1) weekly motivational SMS messages; 2) proactive SMS appointment reminders; 3) SMS reminders after missed appointments; and 4) interactive messaging with 2wT staff about transfers and appointment rescheduling. Using mixed-effects logistic regression models adjusted for participant demographics, we examined the effect of core 2wT component fidelity on a) on-time appointment attendance and b) timely return to care after a missed appointment, presenting adjusted odds ratios (aORs) and 95% confidence intervals (CIs).

Results

The 468 2wT participants had a median of 52 study weeks (interquartile range [IQR] 34 – 52) with 6 ART appointments (IQR 4—7) of which 2 (IQR 1 – 3) were missed. On average, participants received a motivation message for 75% (IQR 56%—83%) of enrolled weeks, a reminder before 83% (IQR 67%—100%) of appointments, and after 67% (IQR 0%—100%) of missed appointments. Participants reported 9 transfers and rescheduled 46 appointments through 2wT prompts; 196 appointments were changed via unprompted interaction. Participants with 10% higher expected motivation message delivery were more likely to attend clinic appointments on time (aOR: 1.08; 95%CI: 1.01 – 1.16, p = 0.03). Receiving and responding to an appointment reminder in any way were also associated with increased on-time appointment attendance (aOR: 1.35; 95%CI: 1.03 – 1.79, p = 0.03 and aOR: 1.47, 95%CI: 1.16 – 1.87, p = 0.001, respectively). No associations were found for 2wT messages and timely return to care following a missed appointment.

Conclusion

Greater 2wT implementation fidelity was associated with improved care outcomes. Although implementation fidelity monitoring of mHealth interventions is complex, it should be integrated into study design.

Contributions to the literature

Despite the recognized importance of implementation fidelity in digital health research, few studies evaluate and transparently report the extent to which mHealth interventions were implemented as intended.
This study presents a framework-based evaluation of the implementation fidelity of a two-way texting intervention for HIV retention in a routine care setting in Malawi. Findings demonstrate how fidelity assessment not only facilitates replication of findings and generalizability assessment, but uncovers implementation challenges and generates hypotheses about intervention mechanisms of action.
The benefits and complexity of implementation fidelity evaluation underscore the need to consider fidelity early and integrate monitoring mechanisms into study design.

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

✪ Healthcare provider perspectives on integrating HIV care into cancer centers in Malawi, South Africa, Uganda, and Zimbabwe

Abstract:

Background

In East and Southern Africa, treatment of people with concomitant cancer and HIV is complicated by siloed service delivery pathways, which exacerbate barriers to care and impact clinical decision-making. Integrating HIV care into cancer treatment centers may improve service delivery and overall patient outcomes.

Methods

We administered a questionnaire to clinicians and support staff at tertiary cancer referral centers in Malawi, Zimbabwe, Uganda, and South Africa to assess level of concern about clinical management of people with HIV (PWH) and cancer, barriers to integrating HIV service delivery into cancer treatment delivery, and beliefs related to HIV, antiretroviral therapy (ART), and integrated care.

Results

Of 195 clinician and support staff participants, 165 (85 %) were direct providers of cancer-associated care. Over 50 % indicated that they held concerns about survival, treatment complications, co-morbidities, and drug-drug interactions in PWH compared to patients without HIV. Over 80 % agreed that knowing cancer patients’ HIV status, ART status, and ART regimen would facilitate better care and should be considered in cancer care decision-making. Overall, respondents were optimistic that HIV-related care could be easily integrated into cancer care provision. The most-frequently endorsed barriers to integrated care were workspace limitations, disruptions to workflow, availability of staff, and cost to the hospital and to patients.

Conclusions

Cancer clinicians and support staff report overall positive attitudes toward integrating HIV and cancer service delivery. Research to elucidate service delivery pathways and contextualize system-based barriers to integrating care are critical next steps to optimize linked HIV and cancer care delivery.

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

✪ The effect of proactive, interactive, two-way texting on 12-month retention in antiretroviral therapy: Findings from a quasi-experimental study in Lilongwe, Malawi

Abstract:

Background

Retaining clients on antiretroviral therapy (ART) is challenging, especially during the first year on ART. Mobile health (mHealth) interventions show promise to close retention gaps. We aimed to assess reach (who received the intervention?) and effectiveness (did it work?) of a hybrid two-way texting (2wT) intervention to improve ART retention at a large public clinic in Lilongwe, Malawi.

Methods

Between August 2021—June 2023, in a quasi-experimental study, outcomes were compared between two cohorts of new ART clients: 1) those opting into 2wT who received automated, weekly motivation short messaging service (SMS) messages and response-requested appointment reminders; and 2) a matched historical cohort receiving standard of care (SoC). Reach was defined as “the proportion clients ≤6 months of ART initiation eligible for 2wT”. 2wT effectiveness was assessed in time-to-event analysis. Retention was presented in a Kaplan-Meier plot and compared between 2wT and SoC using a log-rank test. The effect of 2wT on ART dropout (lost to follow-up or stopped ART) was estimated using Fine-Gray competing risk regression models, adjusting for sex, age and WHO HIV stage at ART initiation.

Results

Of 1,146 clients screened, 501 were eligible for 2wT, a reach of 44%. Lack of phone (393/645; 61%) and illiteracy (149/645; 23%) were the most common ineligibility reasons. Among 468 participants exposed to 2wT, 12-month probability of ART retention was 91% (95% CI: 88% - 94%) compared to 76% (95% CI: 72% - 80%) among 468 SoC participants (p<0.001). Compared to SoC, 2wT participants had a 65% lower hazard of ART dropout at any timepoint (sub-distribution hazard ratio 0.35, 95% CI: 0.24–0.51; p<0.001).

Conclusions

2wT did not reach all clients. For those who opted-in, 2wT significantly increased 12-month ART retention. Expansion of 2wT as a complement to other retention interventions should be considered in other low-resource, routine ART settings.

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

✪ Structural readiness to implement community-wide mass drug administration programs for soil-transmitted helminth elimination: results from a three-country hybrid study

Authors:

Arianna Rubin Means, Elizabeth Orlan, Marie-Claire Gwayi-Chore, Angelin Titus, Saravanakumar Puthupalayam Kaliappan, Comlanvi Innocent Togbevi, Félicien Chabi, Katherine E. Halliday, Providence Nindi, Euripide Avokpaho, Khumbo Kalua, Moudachirou Ibikounlé, Sitara S. R. Ajjampur, Bryan J. Weiner, Judd L. Walson, & Kumudha Aruldas

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

✪ Open Access

Published: July 2021

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

Abstract:

Background

Current soil-transmitted helminth (STH) control programs target pre-school and school-age children with mass drug administration (MDA) of deworming medications, reducing morbidity without interrupting ongoing transmission. However, evidence suggests that STH elimination may be possible if MDA is delivered to all community members. Such a change to the STH standard-of-care would require substantial systems redesign. We measured baseline structural readiness to launch community-wide MDA for STH in Benin, India, and Malawi.

Methods

After field piloting and adaptation, the structural readiness survey included two constructs: Organizational Readiness for Implementing Change and Organizational Capacity for Change. Sub-constructs of organizational readiness include change commitment and change efficacy. Sub-constructs of organizational capacity include flexibility, organizational structure, and demonstrated capacity. Survey items were also separately organized into seven implementation domains. Surveys were administered to policymakers, mid-level managers, and implementers in each country using a five-point Likert scale. Item, sub-construct, construct, and domain-level medians and interquartile ranges were calculated for each stakeholder level within each country.

Results

Median organizational readiness for change scores were highest in Malawi (5.0 for all stakeholder groups). In India, scores were 5.0, 4.0, and 5.0 while in Benin, scores were 4.0, 3.0, and 4.0 for policymakers, mid-level managers, and implementers, respectively. Median change commitment was equal to or higher than median change efficacy across all countries and stakeholder groups.

Median organizational capacity for change was highest in India, with a median of 4.5 for policymakers and mid-level managers and 5.0 for implementers. In Malawi, the median capacity was 4.0 for policymakers and implementers, and 3.5 for mid-level managers. In Benin, the median capacity was 4.0 for policymakers and 3.0 for mid-level managers and implementers. Median sub-construct scores varied by stakeholder and country.

Across countries, items reflective of the implementation domain ‘policy environment’ were highest while items reflective of the ‘human resource’ domain were consistently lower.

Conclusion

Across all countries, stakeholders valued community-wide MDA for STH but had less confidence in their collective ability to effectively implement it. Perceived capacity varied by stakeholder group, highlighting the importance of accounting for multi-level stakeholder perspectives when determining organizational preparedness to launch new public health initiatives.

Trial registration

NCT03014167

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

✪ Prevention of cervical cancer through two HPV-based screen-and-treat implementation models in Malawi: Protocol for a cluster randomized feasibility trial

Abstract:

Background

Cervical cancer is the leading cause of cancer incidence and mortality among Malawian women, despite being a largely preventable disease. Implementing a cervical cancer screening and preventive treatment (CCSPT) program that utilizes rapid human papillomavirus (HPV) testing on self-collected cervicovaginal samples for screening and thermal ablation for treatment may achieve greater coverage than current programs that use visual inspection with acetic acid (VIA) for screening and cryotherapy for treatment. Furthermore, self-sampling creates the opportunity for community-based screening to increase uptake in populations with low screening rates. Malawi’s public health system utilizes regularly scheduled outreach and village-based clinics to provide routine health services like family planning. Cancer screening is not yet included in these community services. Incorporating self-sampled HPV testing into national policy could address cervical cancer screening barriers in Malawi, though at present the effectiveness, acceptability, appropriateness, feasibility, and cost-effectiveness still need to be demonstrated.

Methods

We designed a cluster randomized feasibility trial to determine the effectiveness, acceptability, appropriateness, feasibility, and budget impact of two models for integrating a HPV-based CCSPT program into family planning (FP) services in Malawi: model 1 involves only clinic-based self-sampled HPV testing, whereas model 2 includes both clinic-based and community-based self-sampled HPV testing. Our algorithm involves self-collection of samples for HPV GeneXpert® testing, visual inspection with acetic acid for HPV-positive women to determine ablative treatment eligibility, and same-day thermal ablation for treatment-eligible women. Interventions will be implemented at 14 selected facilities. Our primary outcome will be the uptake of cervical cancer screening and family planning services during the 18 months of implementation, which will be measured through an Endline Household Survey. We will also conduct mixed methods assessments to understand the acceptability, appropriateness, and feasibility of the interventions, and a cost analysis to assess budget impact.

Discussion

Our trial will provide in-depth information on the implementation of clinic-only and clinic-and-community models for integrating self-sampled HPV testing CCSPT with FP services in Malawi. Findings will provide valuable insight for policymakers and implementers in Malawi and other resource-limited settings with high cervical cancer burden.

Trial registration

ClinicalTrials.gov identifier: NCT04286243. Registered on February 26, 2020.

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

✪ Hypothetical acceptability of hospital-based post-mortem pediatric minimally invasive tissue sampling in Malawi: The role of complex social relationships

Abstract:

Background

Child mortality rates remain unacceptably high in low-resource settings. Cause of death (CoD) is often unknown. Minimally invasive tissue sampling (MITS)–using biopsy needles to obtain post-mortem samples–for histopathological and microbiologic investigation is increasingly being promoted to improve child and adult CoD attribution. “MITS in Malawi” is a sub-study of the Childhood Acute Illness & Nutrition (CHAIN) Network, which aims to identify biological and socioeconomic mortality risk factors among young children hospitalized for acute illness or undernutrition. MITS in Malawi employs standard MITS and a novel post-mortem endoscopic intestinal sampling approach to better understand CoD among children with acute illness and/or malnutrition who die during hospitalization.

Aim

To understand factors that may impact MITS acceptability and inform introduction of the procedure to ascertain CoD among children with acute illness or malnutrition who die during hospitalization in Malawi.

Methods

We conducted eight focus group discussions with key hospital staff and community members (religious leaders and parents of children under 5) to explore attitudes towards MITS and inform consent processes prior to commencing the MITS in Malawi study. We used thematic content analysis drawing on a conceptual framework developed from emergent themes and MITS acceptability literature.

Results

Feelings of power over decision-making within the hospital and household, trust in health systems, and open and respectful health worker communication with parents were important dimensions of MITS acceptability. Other facilitating factors included the potential for MITS to add CoD information to aid sense-making of death and contribute to medical knowledge and new interventions. Potential barriers to acceptability included fears of organ and blood harvesting, disfigurement to the body, and disruption to transportation and burial plans.

Conclusion

Social relationships and power dynamics within healthcare systems and households are a critical component of MITS acceptability, especially given the sensitivity of death and autopsy.

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

Identifying challenges and recommendations for advancing global mental health implementation research: A key informant study of the National Institute of Mental Health Scale-Up Hubs

Authors:

John A.Naslund, Jasmine Kalha, Juliana L. Restivo, Ishmael Amarreh, Tamora Callands, Hongtu Chen, Carlos Gomez-Restrepo, Hesham M. Hamoda, Arjun Kapoor, Sue Levkoff, Jones Masiye, Maria A. Oquendo, Vikram Patel, Inge Petersen, Ozge Sensoy Bahar, Laura Shields-Zeeman, Fred M. Ssewamala, Deepak Tugnawat, José Miguel Uribe-Restrepo, Lakshmi Vijayakumar, Bradley H. Wagenaar, Milton L.Wainberg, Larry Wissow, Haja Ramatulai Wurie, Chifundo Zimba, & Soumitra Pathare

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

Subscription Required for Full Text Access

Published: January 2021

Read the full text in the subscription access journal Asian Journal of Psychiatry

Breast Cancer Knowledge, Behaviors, and Preferences in Malawi: Implications for Early Detection Interventions From a Discrete Choice Experiment

Abstract:

Purpose

Breast cancer is the most common female cancer in Africa and leading cause of death resulting from cancer; however, many countries lack early detection services. In Malawi, women are frequently diagnosed with large tumors after long symptomatic periods. Little is known about local cancer knowledge.

Methods

We administered a cross-sectional survey with a discrete choice experiment to a random sample in urban and rural areas of Lilongwe district. Bivariable and multivariable analyses determined factors associated with knowledge. Preference utilities for early detection interventions were estimated using a hierarchical Bayesian model in Sawtooth software.

Results

Of 213 women recruited, fewer than half were aware of breast cancer. In multivariable analysis, electricity at home and knowing someone with cancer increased the odds of awareness. Women were more knowledgeable about symptoms than treatment or risk factors; more than 60% erroneously believed local misconceptions. Seventeen percent were aware of breast self-examination, and 20% were aware of clinical breast examination (CBE); few reported either behavior. Common barriers included not knowing where to access CBE and transportation difficulties. Discrete choice experiment results indicated the detection strategy (breast health awareness, CBE, or both) was the most important attribute of an intervention, followed by the encounter setting and travel time.

Conclusion

Addressing misconceptions in health messages and engaging survivors to promote early detection may help improve breast cancer knowledge in Malawi. Program designs accounting for women’s preferences should provide breast health education and CBEs in convenient settings to address transportation barriers, particularly for women with low socioeconomic position.

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

Authors:

✪ Open Access

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Abstract:

Introduction

Materials and methods

Results

Conclusion

Authors:

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Background

Methods

Results

Conclusion

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Authors:

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Read the full text open access in the journal Translational Oncology

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Background

Methods

Results

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Background

Methods

Results

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✪ Open Access

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

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Background

Methods

Results

Conclusion

Trial registration

Authors:

✪ Open Access

Read the full text in the open access journal Pilot and Feasibility Studies

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Background

Methods

Discussion

Trial registration

Authors:

✪ Open Access

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Background

Aim

Methods

Results

Conclusion

Authors:

Subscription Required for Full Text Access

Read the full text in the subscription access journal Asian Journal of Psychiatry

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✪ Open Access

Read the full text in the open access Journal of Global Oncology

Abstract:

Purpose

Methods

Results

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