Morgan Buchanan

Bio: Morgan Buchanan is an academic researcher from Yale University. The author has contributed to research in topics: Ethnic group & Extreme weather. The author has an hindex of 2, co-authored 2 publications receiving 7 citations.

Neighborhood Social Cohesion and Inequalities in COVID-19 Diagnosis Rates by Area-Level Black/African American Racial Composition.

Abstract: Geographic inequalities in COVID-19 diagnosis are now well documented. However, we do not sufficiently know whether inequalities are related to social characteristics of communities, such as collective engagement. We tested whether neighborhood social cohesion is associated with inequalities in COVID-19 diagnosis rate and the extent the association varies across neighborhood racial composition. We calculated COVID-19 diagnosis rates in Philadelphia, PA, per 10,000 general population across 46 ZIP codes, as of April 2020. Social cohesion measures were from the Southeastern Pennsylvania Household Health Survey, 2018. We estimated Poisson regressions to quantify associations between social cohesion and COVID-19 diagnosis rate, testing a multiplicative interaction with Black racial composition in the neighborhood, which we operationalize via a binary indicator of ZIP codes above vs. below the city-wide average (41%) Black population. Two social cohesion indicators were significantly associated with COVID-19 diagnosis. Associations varied across Black neighborhood racial composition (p <0.05 for the interaction test). In ZIP codes with ≥41% of Black people, higher collective engagement was associated with an 18% higher COVID-19 diagnosis rate (IRR=1.18, 95%CI=1.11, 1.26). In contrast, areas with <41% of Black people, higher engagement was associated with a 26% lower diagnosis rate (IRR=0.74, 95%CI=0.67, 0.82). Neighborhood social cohesion is associated with both higher and lower COVID-19 diagnosis rates, and the extent of associations varies across Black neighborhood racial composition. We recommend some strategies for reducing inequalities based on the segmentation model within the social cohesion and public health intervention framework.

Management Of Chronic Noncommunicable Diseases After Natural Disasters In The Caribbean: A Scoping Review.

Abstract: Extreme weather events in the Caribbean region are becoming increasingly severe because of climate change. The region also has high rates of poorly controlled chronic noncommunicable diseases (NCDs...

Perspectives on National Institutes of Health Funding Requirements for Racial and Ethnic Diversity Among Medical Scientist Training Program Leadership

Abstract: Key Points Question How do administrators and faculty perceive the impact of National Institutes of Health (NIH) funding requirements for Medical Scientist Training Programs (MSTPs) on the racial and ethnic diversity of matriculants? Findings In this qualitative study including 69 administrators and faculty at 12 MSTPs, NIH funding requirements for diversity fostered urgency among MSTP leadership to bolster matriculant diversity, enabled program administrators to secure additional investments in diversity, promoted holistic review, and encouraged rigorous evaluation of the effectiveness of recruitment efforts. Meaning Findings suggest that funding requirements, such as those instituted by the NIH, may encourage impactful institutional practices to increase recruitment efforts and improve the representation of diverse candidates in training programs and, ultimately, the biomedical science workforce.

COVID-19 Vaccine Rollouts and the Reproduction of Urban Spatial Inequality: Disparities Within Large US Cities in March and April 2021 by Racial/Ethnic and Socioeconomic Composition

Abstract: Rollouts of COVID-19 vaccines in the USA were opportunities to redress disparities that surfaced during the pandemic. Initial eligibility criteria, however, neglected geographic, racial/ethnic, and socioeconomic considerations. Marginalized populations may have faced barriers to then-scarce vaccines, reinforcing disparities. Inequalities may have subsided as eligibility expanded. Using spatial modeling, we investigate how strongly local vaccination levels were associated with socioeconomic and racial/ethnic composition as authorities first extended vaccine eligibility to all adults. We harmonize administrative, demographic, and geospatial data across postal codes in eight large US cities over 3 weeks in Spring 2021. We find that, although vaccines were free regardless of health insurance coverage, local vaccination levels in March and April were negatively associated with poverty, enrollment in means-tested public health insurance (e.g., Medicaid), and the uninsured population. By April, vaccination levels in Black and Hispanic communities were only beginning to reach those of Asian and White communities in March. Increases in vaccination were smaller in socioeconomically disadvantaged Black and Hispanic communities than in more affluent, Asian, and White communities. Our findings suggest vaccine rollouts contributed to cumulative disadvantage. Populations that were left most vulnerable to COVID-19 benefited least from early expansions in vaccine availability in large US cities.

Chronic Diseases and Associated Risk Factors Among Adults in Puerto Rico After Hurricane Maria

Abstract: Key Points Question What was the prevalence of chronic diseases and their associated risk factors among adults living in Puerto Rico before and after Hurricane Maria? Findings This cross-sectional study using data from 825 participants in 2 studies conducted in 2015 and 2019 found statistically significantly higher prevalence of unhealthy lifestyle behaviors and multiple chronic conditions among adults in Puerto Rico after Hurricane Maria. Higher social support, lower depressive symptoms, and lower perceived stress were observed after the hurricane. Meaning These findings suggest that as public health emergencies upsurge, continuous efforts will be necessary to sustain healthy behaviors, positive emotional health, and low rates of chronic diseases.

Social Determinants of Disease: HIV and COVID-19 Experiences

Abstract: Abstract Purpose of Review The differential impact of the COVID-19 and HIV pandemics on marginalized communities has renewed calls for more robust and deeper investigation into structural and social causes of health inequities contributing to these infections, including underlying factors related to systematic racism. Using the Social Determinants of Health (SDOH) framework, we analyzed parallel and divergent factors associated with COVID-19 and HIV/AIDS and the prevalence of disparate disease in diverse communities. We utilized PRISMA guidelines to identify relevant literature (N = 210 articles) that resulted in a review of 125 articles included in our synthesis. Recent Findings With racial health inequities as a core contributor to disease vulnerability, we also identified other factors such as economic stability, social and community support, the neighborhood and built environment, healthcare access and quality, and education access and quality as important socioecological considerations toward achieving health equity. Our review identifies structural and systematic factors that drive HIV and COVID-19 transmission. Summary Our review highlights the importance of not solely focusing on biomedical interventions as solutions to ending HIV and COVID-19, but rather call for building a more just public health and social service safety net that meets the needs of people at the intersection of multiple vulnerabilities.

HIV Infection Prevalence Significantly Intersects With COVID-19 Infection At the Area Level: A US County-Level Analysis.

Abstract: BACKGROUND: Limited empirical evidence exists about the extent to which the current HIV epidemic intersects with COVID-19 infections at the area/geographic level. Moreover, little is known about how demographic, social, economic, behavioral, and clinical determinants are jointly associated with these infectious diseases. SETTING: Contiguous US counties (N = 3108). METHODS: We conducted a cross-sectional analysis and investigated the joint association between new HIV infection prevalence in 2018 and COVID-19 infections (January 22, 2020 and October 7, 2020) and explore the contribution of factors such as income inequality, binge drinking, and socioeconomic deprivation. We used Bayesian multivariate spatial models to estimate the cross-disease correlations between these diseases and identified hotspots, which we defined as a county with a posterior probability greater than 80% of being in the top decile of that disease. RESULTS: New HIV infection prevalence and COVID-19 infection moderately and significantly intersect [spatial correlation = 0.37, 95% credible interval (CrI) = 0.36-0.37]. Seventy-five counties, mostly in the south, were at elevated burden for HIV and COVID-19 infections. Higher income inequality was positively associated with both COVID-19 (relative risk 1.05, 95% CrI = 1.03-1.07) and HIV infection (relative risk = 1.12, 95% CrI = 1.09-1.15). CONCLUSIONS: We found that there is a considerable intersection between the current distribution of HIV burden with COVID-19 infections at the area level. We identified areas that federal funding and vaccination campaigns should prioritize for prevention and care efforts.

A multilevel approach to social support as a determinant of mental health during COVID‐19

Abstract: Abstract The COVID‐19 pandemic has detrimentally affected the mental health of lower income communities. We sought to investigate the relationship among multilevel social support, specifically individual‐, network‐, and neighborhood‐level social supports, COVID‐19‐related stressors, and probable diagnoses of depression, anxiety, and posttraumatic stress (PTS), within a racially diverse and predominantly low‐socioeconomic status population. We used multiple logistic regressions to assess the odds of diagnosis for high versus low social support and stressor levels. Participants who endorsed high levels of stress had significantly higher odds of probable diagnoses. Participants who endorsed low individual‐level social support had higher odds of probable depression and anxiety. Those who endorsed low neighborhood‐level social support had higher odds of probable depression and probable PTS. Network‐level social support was not significantly associated with the health indicators of interest. Results indicate the importance of both individual‐ and neighborhood‐level support to protect mental health during COVID‐19.