Faculty Bibliography

Reciprocal innovation, a model of sustained, multidirectional exchange in which health strategies are adapted, revisited, and refined across contexts, offers a compelling framework to rethink how implementation science can support global health equity by enabling dynamic, multidirectional learning across different contexts. Drawing on the EXTRA-CVD trial, a nurse-led cardiovascular disease prevention intervention designed to extend the HIV treatment cascade in United States (U.S.) HIV clinics, which adapted strategies informed by implementation research in Kenya and the U.S. Veterans Affairs health system, this perspective examines how reciprocal innovation can begin to emerge within existing research structures, as well as where opportunities for deeper exchange remain limited. We identify four operational domains of reciprocal innovation: care delivery strategies, end-user engagement, research methodologies, and research leadership and partnership. Across these domains, we describe how cross-context learning shaped intervention adaptation and site-level implementation in EXTRA-CVD, as well as missed opportunities where more intentional feedback, shared leadership, and methodological exchange could have strengthened multidirectional learning. Taken together, this work highlights both the potential and the practical challenges of reciprocal innovation in implementation research, emphasizing its role in moving beyond unidirectional knowledge transfer toward iterative, context-responsive learning. By embedding structures for iterative feedback, equity-centered governance, and multidirectional learning systems within research and implementation systems, future global partnerships can foster more inclusive, responsive, and sustainable health interventions.

We address an ethical challenge in climate change adaptation and global health research. The challenge stems from two pairs of intuitions about justice and responsibility in climate change and health. One pair assigns responsibility for adaptation research to high-income countries given their historical emissions, disproportionate share of resources and capacity to intervene. The other pair assigns responsibility to low- and middle-income countries given their agency, right to self-determination, local authority and legitimacy, and disproportionate burden of climate and health risks. The intuitions create conflicting views: obligation and assistance pull in one direction, and agency and authority pull in another. To resolve the tension, we distinguish two forms of responsibility: (i) adaptation-enabling responsibilities; and (ii) adaptation-enacting responsibilities. The resulting division of labour reflects different forms of justice and aligns with the principle of subsidiarity's core elements, namely: non-abandonment, non-absorption, and cooperation and coordination. We thus propose a framework that ascribes adaptation-enabling responsibilities to high-income countries, including adaptation financing, capacity-building and other forms of support; and adaptation-enacting responsibilities to low- and middle-income countries, including priority-setting in local adaptation research, and creation and implementation of their adaptation plans and policies. Our framework also suggests a third form of responsibility: shared adaptation responsibilities, which are jointly assigned to high-income countries, low- and middle-income countries and agents at multiple levels within them. We conclude that genuine collaboration in adaptation research, where high-income countries enable without dominating and low- and middle-income countries act without being abandoned, will be essential for just and effective adaptation to climate change.

INTRODUCTION/BACKGROUND:Research has increasingly underscored the impact of factors such as socioeconomic status, education, healthcare access, housing and environmental conditions in shaping population health outcomes. These factors, collectively called social determinants of health (SDOH), provide crucial context for understanding drivers of health outcomes. In sub-Saharan Africa (SSA), the study of SDOH is critical due to the region's unique sociocultural and economic conditions. Understanding how SDOH interacts with health systems and capturing SDOH in data is crucial for informing modelling efforts and policies improving population health more effectively. This scoping review aims to map the types of data used to capture SDOH in research conducted in SSA, to identify research gaps and to summarise key findings. METHODS:, providing best practices for identifying, selecting and analysing eligible studies. Key steps include (1) identifying the research question, (2) identifying relevant studies, (3) selecting eligible studies via a locally curated search, (4) extracting information, (5) collating, summarising and reporting results and (6) consultation with stakeholders. ETHICS AND DISSEMINATION/BACKGROUND:Ethical approval is not required, as this review relies solely on published literature. Findings will be disseminated across academic channels (journals, conferences) and through targeted stakeholder engagement efforts, such as policy briefs and public health workshops, to reach policymakers, healthcare practitioners and community health organisations. This dissemination strategy aims to inform health policy and drive programme development in SSA.

The implementation of guideline-recommended care is associated with improved clinical outcomes for patients with cardiovascular disease. It is well documented that people living in low socioeconomic position have a high burden of cardiovascular disease and higher mortality rates. In this state-of-the-art review, the association of socioeconomic deprivation and guideline implementation is outlined, showing that across a range of settings, countries and clinical scenarios people with low socioeconomic position are further disadvantaged by sub-optimal provision of guideline recommended care. Reducing cardiovascular health inequality and improving population education should be priorities for governments. Greater attention to the provision of guideline-indicated care is recommended by tackling modifiable barriers to care. Broadly, the prioritization of use of advocacy, workforce, broader policy responses, data, randomized clinical trial re-design, quality indicators, and risk scores are recommended to reduce health inequalities for those who live in socioeconomic deprivation. A renewed focus on the provision of high-quality guideline-recommended cardiovascular care has the potential to reduce healthcare inequalities as well as improve clinical outcomes amongst our most socioeconomically deprived populations.

OBJECTIVES/OBJECTIVE:To identify stakeholder perceived challenges and facilitators for implementing a clean fuel and clean stove intervention to reduce household air pollution and hypertension in Lagos, Nigeria. DESIGN/METHODS:Qualitative study guided by the Exploration and Preparation phases of the Exploration, Preparation, Implementation, and Sustainment (EPIS) framework, using focus group discussions and in-depth semi-structured interviews with inductive and deductive thematic analysis. SETTING/METHODS:Peri-urban communities across the five administrative divisions of Lagos State, Nigeria. PARTICIPANTS/METHODS:128 stakeholders from 32 communities, including community, religious, market and youth leaders, primary healthcare staff, and household decision makers. Approximately half were female. INTERVENTIONS/METHODS:This was a pre-implementation needs assessment that included demonstrations of the clean stove and fuel. PRIMARY AND SECONDARY OUTCOME MEASURES/METHODS:Thematic domains describing barriers and enablers to adoption and implementation, mapped to EPIS inner, outer, and bridging factors. RESULTS:Stakeholders reported barriers that included stove stacking, upfront stove cost, concerns about long-term fuel price and availability, equipment durability and maintenance, safety, mistrust of new technology, and uncertainty about stove performance for dishes requiring high heat and long cooking times. Reported facilitators included payment flexibility and subsidies, opportunities to test the stove, perceived benefits of cleaner and faster cooking with less soot, endorsement by community leaders, and interest in local retail and distribution to improve access. CONCLUSIONS:Implementation planning for clean fuel and clean stove programmes should address affordability, reliable fuel supply chains, durability and service, culturally relevant cooking needs, and trust building through community leadership. These findings inform adaptation strategies for scale-up in similar low-resource settings. TRIAL REGISTRATION NUMBER/BACKGROUND:NCT05048147.

The impact of COVID-19-related mental health effects on health behaviors among people living with HIV (PLWH) remains unknown. Our qualitative study explored the relationship between the mental health consequences of the COVID-19 pandemic and self-management of HIV and cardiovascular disease (CVD) among PLWH in the United States. Twenty-four PLWH enrolled in a multicenter, cardiovascular, clinical trial completed one-on-one semistructured interviews to assess changes in mood, health behaviors, and comorbid CVD management during the COVID-19 pandemic. The majority of participants (ages 43-70 years) were male (n = 17, 70.8%) and Black (n = 19, 79.2%). Participants reported increased mental distress during the COVID-19 pandemic, which they perceived to negatively affect heart-healthy behaviors. Despite mental health stressors, this population continued to adhere to medications, including antiretroviral therapy. Future initiatives should focus on improving mental health outcomes and promotion of healthy lifestyle choices among PLWH to mitigate adverse CVD outcomes.

BACKGROUND:The COVID-19 pandemic had a significant impact on healthcare delivery. Older adults with multimorbidities were at risk of healthcare disruptions for the management of their chronic conditions. OBJECTIVE:To characterize healthcare disruptions during the COVID-19 healthcare shutdown and recovery period (March 7, 2020-October 6, 2020) and their effects on disease management among older adults with multimorbidities who were patients of NYC Health + Hospitals (H + H), the largest municipal safety-net system in the United States. DESIGN/METHODS:Observational. PATIENTS/METHODS:Patients aged 50 + with hypertension or diabetes and at least one other comorbidity, at least one H + H ambulatory visit in the six months before COVID-19 pandemic onset (March 6, 2020), and at least one visit in the post-acute shutdown period (October 7, 2020 to December 31, 2023). MAIN MEASURES/METHODS:We characterized disruption in care (defined as no ambulatory or telehealth visits during the acute shutdown) and estimated the effect of disruption on blood pressure control, hemoglobin A1c (HbA1c), and low-density lipoprotein (LDL) cholesterol using difference-in-differences models. KEY RESULTS/RESULTS:Out of 73,889 individuals in the study population, 12.5% (n = 9,202) received no ambulatory or telehealth care at H + H during the acute shutdown. Low pre-pandemic healthcare utilization, Medicaid insurance, and self-pay were independent predictors of care disruption. In adjusted analyses, the disruption group had a 3.0-percentage point (95% CI: 1.2-4.8) greater decrease in blood pressure control compared to those who received care. Disruption did not have a significant impact on mean HbA1c or LDL. CONCLUSIONS:Care disruption was associated with declines in blood pressure control, which while clinically modest, could impact risk of cardiovascular outcomes if sustained. Disruption did not affect HbA1c or LDL. Telehealth mitigated impacts of the pandemic on care disruption and subsequent disease management. Targeted outreach to those at risk of care disruption is needed during future crises.

People with HIV are at increased risk of cardiovascular events; thus, care delivery strategies that increase access to comprehensive cardiovascular disease (CVD) risk management are a priority. We report the results of a multi-component telemedicine-based strategy to improve blood pressure control among people with HIV-Assess and Adapt to the Impact of COVID-19 on CVD Self-Management and Prevention Care in Adults Living with HIV (AAIM-High). The AAIM High strategy is a virtual adaptation of our previously published EXTRA-CVD strategy and consisted of hypertension education and six components: nurse-led care coordination (delivered by teleconference or telephone), home systolic blood pressure (SBP) monitoring, evidence-based treatment algorithms, electronic health records tools, technology coach, and communication preferences assessment. People with HIV (n = 74) with comorbid hypertension at three academic medical centers were enrolled in a single arm implementation study from January 2021 to December 2022. Over 12 months, the average patient-performed home SBP decreased by 7.7 mmHg (95% CI -11.5, -3.9). The percentage of patients at treatment goal, defined as average SBP <130 mmHg, increased from 46.0% to 72.5% at 12 months. By adapting to the growing use of telemedicine in healthcare delivery, our study effectively improved hypertension control in people with HIV through a virtual, nurse-led intervention.

BACKGROUND:In Nigeria, cardiovascular diseases, especially hypertension, are on the rise. This increase in hypertension correlates with more strokes, significantly impacting mortality. Since hypertension often persists into adulthood, early interventions are crucial to prevent its complications. Non-invasive methods, such as music and creative activities, can effectively improve blood pressure and reduce stroke risk. This study aims to improve intergenerational awareness of hypertension and promote sustainable preventive practices by involving youth and caregivers within families and communities. METHODS:We employed a participatory, observational design, incorporating a five-month crowdsourcing open call followed by a designathon event. Participatory social and health innovations were combined and implemented as part of a larger study titled "Innovative Tool to Expand Music-Inspired Strategies for Blood Pressure and Stroke Prevention" (I-TEST BP/Stroke). Our study targeted youths aged 14 to 24, a critical period for shaping health behaviors and attitudes toward diseases. The 20 finalist textual entries were categorized into themes using the PEN-3 cultural model. The PLAN framework analyzed the effectiveness of participants' entries in conveying public health messages. RESULTS:The crowdsourced open call for musical ideas received 85 submissions between October 2023 and March 2024. More males (74.3%) than females, mainly aged 22-24, and mostly undergraduates (44.3%), participated in the open call, with 88.65% having heard of hypertension. Qualitative analysis with PEN-3 highlighted themes regarding Perceptions and Enablers, such as monitoring blood pressure, engaging in physical activity, and avoiding alcohol and smoking. The use of Pidgin English and Nigerian languages in songs represents Positive Cultural Empowerment. The Negative Cultural Empowerment domain addresses misconceptions about hypertension, including the belief that hypertension is a curse. Utilizing the PLAN framework, the submissions demonstrated an effective blend of catchy, memorable tunes with health education messages. CONCLUSION/CONCLUSIONS:The designathon produced various music genres, including afrobeats, rap, and R&B, with lyrics deemed feasible and socio-culturally appropriate. This suggests that music interventions tailored to Nigeria could enhance public awareness of hypertension and stroke prevention if scaled up.

INTRODUCTION/BACKGROUND:In Africa, 75% of households are exposed to household air pollution (HAP), a key contributor to cardiovascular disease (CVD). In Nigeria, 90 million households rely on solid fuels for cooking, and 40% of adults have hypertension. Though clean fuel and clean stove (CF-CS) technologies can reduce HAP and CVD risk, their adoption in Africa remains limited. METHODS AND ANALYSIS/METHODS:Using the Exploration, Preparation, Implementation and Sustainment framework, this cluster-randomised controlled trial evaluates the implementation and effectiveness of a community mobilisation (CM) strategy versus a self-directed condition (i.e., receipt of information on CF-CS use without CM) on adoption of CF-CS technologies and systolic blood pressure (SBP) reduction among 1248 adults from 624 households across 32 peri-urban communities in Lagos, Nigeria. The primary outcome is CF-CS adoption at 12 months; secondary outcomes are SBP reduction at 12 months and sustainability of CF-CS use at 24 months. Adoption is assessed via objective monitoring of stove usage with temperature-triggered iButton sensors. SBP is assessed in 2 adults per household using validated automated blood pressure monitor. Generalised linear mixed-effects regression models will be used to assess study outcomes, accounting for clustering at the level of the peri-urban communities (unit of randomisation) and households. To date, randomisation is completed, and a total of 1248 households have enrolled in the study. The final completion of the study is expected in June 2026. ETHICS AND DISSEMINATION/BACKGROUND:The study was approved by the Institutional Review Boards (IRB) of NYU Grossman School of Medicine (primary IRB of record; protocol ID: i21-00586; Version 6.0 approved on 4 June 2024), and Lagos State University Teaching Hospital (protocol ID: LREC 06/10/1621). Written consent was obtained from all participants. Findings will inform scalable and culturally appropriate strategies for reducing HAP and CVD risk in low-resource settings. Results will be disseminated through peer-reviewed publications, conference presentations and stakeholder engagements. TRIAL REGISTRATION NUMBER/BACKGROUND:NCT05048147.