Health Disparities Research Articles

Laboratory Data as a Potential Source of Bias in Healthcare Artificial Intelligence and Machine Learning Models.

Artificial intelligence (AI) and machine learning (ML) are anticipated to transform the practice of medicine. As one of the largest sources of digital data in healthcare, laboratory results can strongly influence AI and ML algorithms that require large sets of healthcare data for training. Embedded bias introduced into AI and ML models not only has disastrous consequences for quality of care but also may perpetuate and exacerbate health disparities. The lack of test harmonization, which is defined as the ability to produce comparable results and the same interpretation irrespective of the method or instrument platform used to produce the result, may introduce aggregation bias into algorithms with potential adverse outcomes for patients. Limited interoperability of laboratory results at the technical, syntactic, semantic, and organizational levels is a source of embedded bias that limits the accuracy and generalizability of algorithmic models. Population-specific issues, such as inadequate representation in clinical trials and inaccurate race attribution, not only affect the interpretation of laboratory results but also may perpetuate erroneous conclusions based on AI and ML models in the healthcare literature.

Considerations of Intersectionality in Psychological research

At the forefront of the increasingly popular intersectionality agenda in psychology is the wellbeing of individuals. The British Psychological Society states that a key principle of psychological research is to “consider societal benefits” and “contribute to the common good” (BPS, 2021). There is an abundance of evidence on the harmful outcomes of negative intergroup relations and systemic oppression on marginalised individuals. For example, marginalised groups often experience educational and economic disadvantages (Porter, 2011) alongside both physical and mental health disparities (English et al., 2022; Mitchell et al., 2021; Stevens-Watkins et al., 2014). Consequently, psychology as a discipline should prioritise advocating for a more equitable society.

Reducing health disparities in providing care services in the intensive care unit: a critical ethnographic study

ObjectiveThe intensive care unit, with its structural complexity and the exposure of critically ill patients to various disparities, presents a significant setting for health disparities. This critical ethnographic study sought to uncover cultural knowledge and ethical practices for reducing health disparities in providing care services within the intensive care unit. The focus was on understanding how ethical considerations and cultural competence can address and mitigate these disparities effectively.MethodsThis critical ethnographic study was conducted in 2022–2023 at intensive care units in western Iran. Three interrelated phases were used to collect and analyze the data. More than 300 h of observation were done during the first phase. A horizon analysis was carried out in the next phase. To further enhance the dataset, 18 informants participated in semi-structured interviews and informal conversations. Following that, the analysis procedure was conducted to identify a culture of health disparities and factors that reduce it, as it had been in the prior stage. Trustworthiness data collection methods were implemented to ensure the validity and reliability of the study.FindingsTwo key themes emerged from the study: (A) Improved cultural competence, which encompassed empathy towards patients and their families, effective communication, prioritization of continuous learning, appropriate knowledge and awareness, sensitivity to cultural and religious beliefs, staff attitude and personality, and the delivery of customized care tailored to each patient’s needs. (B) Supporting role and compensating for disparities involved recommendations for upholding ethical standards, compensatory actions, maintaining professional behavior despite external factors, addressing gaps and deficiencies, and actively defending and supporting patients.ConclusionThe findings indicate that staff with high cultural competence can ethically mitigate health disparities through their supportive roles. Managers and health policymakers should create barriers to health disparity by improving staff cultural competence and knowledge about health disparities.

Changes in exposure to environmental contaminants in the aftermath of Hurricane Maria among pregnant women in northern Puerto Rico

Experiencing a hurricane during pregnancy is associated with increased risk of adverse birth outcomes and poor mental health. Pregnant people from marginalized communities are more susceptible to adverse effects, as they have fewer resources to overcome hardships at a time when shelter and nutrition are essential. When Hurricane Maria (HM) devastated Puerto Rico in September 2017, the archipelago was already burdened with high poverty, health disparities, environmental contamination, and fragile utility infrastructure. We aimed to compare biomarkers of environmental exposures among pregnant participants in the PROTECT cohort before and after HM and to identify hurricane-related sources of exposure. Metals, PAHs, phthalate metabolites, and phenols were measured in urine samples collected from participants at three prenatal visits (2011–2019). Samples were categorized as before, <3 months, 3–6 months, and >6 months after HM. Using linear mixed effects models, we found that in the 6 months after HM, participants had higher Co, Ni, and DEHPTP concentrations, indicating increased exposure, and lower concentrations of PAHs, several metals, and phthalates, suggesting decreased exposure, compared to pre-HM levels. Biomarkers were not associated with potential exposure sources assessed through questionnaire or previously measured tap water contaminants. This study provides insight into how extreme weather events may alter environmental exposures among pregnant people in Puerto Rico. As climate change has increased the frequency and magnitude of such events, additional research is needed to clarify the implications for maternal and child health and to identify sources of related environmental exposures within this vulnerable population.

Editorial: Environmental impacts on women’s health disparities and reproductive health: advancing environmental health equity in clinical and public health practice

Editorial: Environmental impacts on women’s health disparities and reproductive health: advancing environmental health equity in clinical and public health practice

38 Disparities in health outcomes by the age of five among preterm children in rural versus urban communities in British Columbia

Abstract Background Health disparities exist between than urban and rural communities, as rates of preterm birth, severe maternal morbidity and severe neonatal morbidity are higher in rural areas. There are limited population-based studies on early childhood health outcomes among those born preterm by geographical area. Objectives To compare health service use, morbidity, and medication use for up to five years of age between preterm children in rural versus urban residences. Design/Methods The study included liveborn infants at 22-44 weeks’ gestational age (GA) in British Columbia (BC), Canada, 2004-2014. Follow-up data to December 2019 included linked health information from four provincial databases (perinatal database, outpatient visits, hospitalizations, and outpatient prescriptions). Urban-rural status was based on maternal residence at birth. Rate ratios (RR) of health service use, childhood morbidity and medication use were compared within GA categories (22-27, 28-33, 34-36, 37-44) by rural vs. urban region using Poisson regression. Results There were 49,555 (10.9%) rural and 406,149 (89.1%) urban children included in this study. 42,789 children were born at &amp;lt;37 weeks GA, and the preterm birth rate was 9.4%. Compared to urban areas, children in rural regions had more hospitalizations (28-33 weeks: RR 1.35, 95% CI: 1.19-1.51; 34-36 weeks: RR 1.35, 95% CI 1.27-1.44; 37-44 weeks: RR 1.32, 95% CI 1.29-1.34) by five years of age; and significantly fewer outpatient visits (22-27 weeks: RR 0.90, 95% CI: 0.87-0.93; 28-33 weeks: RR 0.81, 95% CI: 0.80-0.82; 34-36 weeks: RR 0.75, 95% CI 0.74-0.75; 37-44 weeks: RR 0.71, 95% CI 0.71-0.71). Rural children born at 34-36 weeks had significantly higher rates of bronchiolitis (RR: 1.35, 95% CI: 1.16-1.56) compared to urban children. They were prescribed more antibiotics and bronchodilators (RR: 1.15, 95% CI: 1.13-1.17, and RR: 1.12, 95% CI: 1.05-1.19, respectively). Conclusion Compared with urban areas, preterm children living in rural regions of BC had higher rates of hospitalization, higher rates of bronchiolitis and more frequent prescriptions of antibiotics and bronchodilators by five years of age. These disparities in health status and service use warrant further research and public health interventions.

40 Trust, belonging and understanding - The experiences of families who use languages other than English (LOE) that are hospitalized on general paediatric inpatient units

Abstract Background Despite recognition that social determinants are critical to health outcomes, many groups, including those with lower incomes, racial/ethnic minorities, and other historically marginalized populations, continue to experience significant social and structural barriers to care. There is need for research that incorporates patient and stakeholder engagement in developing, testing, and disseminating interventions to improve outcomes for patient populations that have been marginalized in the health system. Patients who use a language(s) other than English (LOE) for healthcare communication are at increased risk for experiencing adverse events and worse health outcomes in healthcare settings, including in paediatric hospitals. Canadian census data indicates 12.7% of Canadians predominantly speak a language other than French or English. This work aims to generate knowledge to improve health outcomes for children and families who speak LOE. Objectives (1) To understand the lived experience of families who speak LOE around the hospitalization of their child and (2) To understand the perspectives of patients and families who speak LOE on how the healthcare system can improve care during hospitalization. Design/Methods The premise of this study is participatory research. We designed a qualitative study involving children hospitalized in the General Paediatric Inpatient Unit at the Hospital for Sick Children. The study includes family caregivers of children age 0 to 18 years who identify as speaking LOE. Children and families could speak any language that we were able to obtain interpreter support for. We excluded patients that spoke a traditional Indigenous language as we noted this work required a separate study in partnership with the Indigenous community. We conducted semi-structured virtual individual interviews with children and families post-discharge with a medical interpreter. An interview guide was developed and transcripts were analyzed using thematic analysis. We took several steps to ensure an effective study design given our goals of participatory research including ensuring patient and family engagement throughout the design process. Results 19 families participated in the interviews and 16 different languages were represented amongst our participant groups. Our study is unique in especially unique in it's ability to recruit and interview individuals with so many different primary languages. Our study provides rich insight into opportunities within the paediatric inpatient setting for quality improvement to address the health disparities experienced by patients and families who use LOE for healthcare communication. Our analysis of the interviews identify several themes that provide insight into the lived experience of patients and families who use LOE for healthcare communication. 1) Inconsistent interpreter use affects communication “in the moment” and the ability to develop an “overall understanding” of the current clinical situation and broader healthcare context. Our participants note a "snowball effect" when interpreters are not consistently utilized. 2) In addition to language, multiple additional social factors contribute to an increased sense of vulnerability and modulates how families “trust” the healthcare system. 3) Despite families expressing positive experiences, they noted that they did not, nor expect to feel like they “belonged” within the healthcare system. It is critical to recognize the complex interplay between many factors surrounding our participants’ identities. Though they use a LOE for healthcare, the intersectional marginalization they experience was thoroughly represented during our conversations Conclusion Our research aimed to take a participatory approach to consider the lived experience of patients and families who use LOE for healthcare communication. This work builds on the current literature on patient and family centered care, experiences of families who speak LOE and participatory community-based research in the paediatric hospital settings. Our study's findings support the development of a research and intervention agenda in Canada to improve health outcomes for patients and families with LOE.

72 Hospital level of service, rural-urban hospital location, and neonatal resuscitation interventions at birth: A population-based study in Alberta, Canada from 2000-2020

Abstract Background Advanced neonatal resuscitation interventions (ANRIs: endotracheal intubation, chest compressions, and epinephrine) are rarely needed for infants born at ≥34 weeks gestational age (GA). However, healthcare providers (HCPs) in community hospitals can encounter the need for ANRIs, while having less experience and resources than HCPs in centers with neonatal intensive care units (NICUs). Understanding practice differences between hospitals of different levels of service (LofS) and rural/urban location can inform quality improvement to reduce health disparities. Objectives To examine how hospital level of service and rural/urban location relate to ANRI rates in Alberta, Canada, a universal public health system with standardized Neonatal Resuscitation Program (NRP) training. Design/Methods All live births ≥34 weeks GA in Alberta from 2000-2020 inclusive were examined using retrospective, population-level administrative data from the Alberta Perinatal Health Program (APHP). Hospitals (n=97) were contacted to determine annual LofS during the study period, with levels (0,1A/B/C,2,3) based on provincial obstetrical triage for availability of delivery support, cesarean-sections, obstetricians, paediatricians/neonatologists, and NICUs. Hospitals were further subcategorized by population and proximity to metropolitan centers.(Table 1) Rates of individual interventions or any ANRI were compared. Results There were 971,403 live births during the study period with a mean GA of 38.9 weeks; 1.6% were missing ANRI data, 955,835 births were included. Most occurred in hospitals with level 2 (57.4%) or level 3 (21.8%) NICUs; few occurred at sites with no delivery support (Level 0, 0.1%). ANRI rates were intubation (0.8%), chest compression (0.2%), and epinephrine (0.02%), any ANRI (0.96%, ~1/1000 live births). However, chest compression rates progressively decrease, and intubation rates progressively increase as LofS increases.(Table 1, Figure 1) When considering rural/urban location, there were outliers in chest compression rates in remote 0 (25.4/1000 live births) and metro-influenced 1A (30.2/1000 live births), intubation in remote 1C (33.3/1000 live births) and metro 0 (193.5/1000 live births) and epinephrine in metro 0 (64.5/1000 live births). Conclusion In this population-based cohort study of ≥34 weeks births, there were higher chest compressions rates and lower intubations rates at hospitals without NICUs despite standardized training. Reasons for this difference require further investigation; potential solutions such as targeted outreach education and introduction of laryngeal mask airways could be explored.

Reduce, reinforce, and replenish: safeguarding the early-life microbiota to reduce intergenerational health disparities

Socioeconomic (SE) disparity and health inequity are closely intertwined and associated with cross-generational increases in the rates of multiple chronic non-communicable diseases (NCDs) in North America and beyond. Coinciding with this social trend is an observed loss of biodiversity within the community of colonizing microbes that live in and on our bodies. Researchers have rightfully pointed to the microbiota as a key modifiable factor with the potential to ease existing health inequities. Although a number of studies have connected the adult microbiome to socioeconomic determinants and health outcomes, few studies have investigated the role of the infant microbiome in perpetuating these outcomes across generations. It is an essential and important question as the infant microbiota is highly sensitive to external forces, and observed shifts during this critical window often portend long-term outcomes of health and disease. While this is often studied in the context of direct modulators, such as delivery mode, family size, antibiotic exposure, and breastfeeding, many of these factors are tied to underlying socioeconomic and/or cross-generational factors. Exploring cross-generational socioeconomic and health inequities through the lens of the infant microbiome may provide valuable avenues to break these intergenerational cycles. In this review, we will focus on the impact of social inequality in infant microbiome development and discuss the benefits of prioritizing and restoring early-life microbiota maturation for reducing intergenerational health disparities.

Teaching health disparities on the road: An experiential educational intervention for doctor of nursing practice students

AimThis analysis was conducted to understand the nuanced and underlying benefits and challenges of an experiential educational intervention for DNP students learning how neighborhoods and health disparities may be related. BackgroundPoor social and environmental conditions in many low-income urban neighborhoods are linked to deleterious health outcomes. Many of the structural and political influences are unknown to health providers, which can inhibit their understanding of the social effects on health. One aspect of a new DNP social determinants of health curriculum is a guided community bus tour in economically disadvantaged neighborhoods to enhance understanding of health disparities. DesignA concurrent mixed methods design, including comparison surveys and thematic analysis, was used to analyze student responses to the experiential educational intervention. MethodA community-based bus tour implemented in socially disadvantaged neighborhoods in an urban environment was the study focus. New DNP students (n=91) in a midwestern university introductory course agreed to provide feedback following an experiential learning activity. The analysis of responses to the educational intervention was completed using a systematic thematic analysis alongside descriptive statistics and paired t-tests in a convergent mixed methods analytical approach to answer the research aim. ResultsStudents expressed confidence in naming and addressing health disparities after the bus tour activity. Analysis showed: (a) A visual tour can impact new learning, (b) Policy can explain inequity and is new to students, (c) Students do not well articulate racial disparities and (d) Understanding racial history requires attention and conversation. ConclusionA community bus tour met our expectations for teaching DNP students concepts related to health disparities as it illustrated real-life situations in actual neighborhoods. However, there were unusual student responses that prompted us to reflect on the activity and consider improvements. More emphasis needs to be placed on cultural wealth and on discussion planning for such experiences. Our results lay the groundwork for curriculum development. Setting goals and targets in line with the 2022 CDC’s Core Health Equity Science and Implementation Strategy is essential.

Preparedness, Challenges, and Opportunities for Digital Intervention for Chronic Disease Management: A Qualitative Study in Rural Areas of South Korea

ABSTRACT Motivated by the prevalence of an aging population and the associated increase in chronic diseases, coupled with rising medical expenditure, the Korean government initiated a pilot project in Pyeongchang-gun, Gangwon-do, a rural area, to implement a “smart online-to-offline (O2O) digital health care model” aimed at managing and preventing chronic diseases. However, there is limited understanding regarding perspectives and levels of preparedness for digital health among stakeholders at various levels. In-depth focus group interviews were conducted with elderly and non-elderly community members, health care providers, and staff members at Pyeongchang Health and Medical Center. The study found the presence of both positive and negative perceptions and a lack of preparedness across different levels. At the end-user level, it was observed that community members, especially the elderly, have low levels of health and digital literacy, compounded by limited access to social support. At the health care provider level, there was uncertainty about the acceptance of the digital health program. At the area level, the need to bolster health staff members and enhance their capacity was observed. Recommendations include: customizing the design of the online and offline service components by considering end-user factors (such as age, occupation, and household type) that may contribute to disparities in health; establishing a platform for providers to share their experiences to facilitate the effective incorporation of digital health into their practices; and preparing an appropriate provider payment mechanism.

From Counting Dollars to Counting Sheep: Exploring Simultaneous Change in Economic Well-Being and Sleep among African American Adolescents.

In the U.S.A., Black/African American adolescents disproportionately experience short and poor-quality sleep, and there is little understanding of why some experience decrements or improvements in sleep over time. Toward conducting culturally specific research and identifying processes that uniquely explain variability within a racial/ethnic group, we utilized a within-group design to examine socioeconomic status (SES) as a predictor of Black adolescents' sleep. Few studies have examined change-on-change processes in sleep over time. Contributing to the literature in novel ways, we assessed the predictive effect of change in SES over one year on changes in four actigraphy-derived sleep parameters over the same time period. Participants were 218 Black adolescents (Time 1: Mage = 17.09 years; 54.6% female) and their mothers from socioeconomically diverse backgrounds. Adolescents participated in two-waves of data collection spaced approximately one year apart. At each wave, we assessed economic well-being (used to index SES) and sleep using 7 nights of actigraphy from which we derived measures of sleep duration (minutes) and quality (efficiency, long-wake episodes, activity). Latent difference score analyses revealed that adolescents experiencing increases in SES over one year exhibited decreases in both long-wake episodes and sleep activity over one year. Findings suggest that individual differences in change in SES explain individual differences in change in adolescents' sleep quality. Notably, findings highlight the utility of within-group designs for identifying culturally specific processes that predict improvements in sleep quality in a sample at disproportionate risk for sleep and health disparities.

Environmental Justice and Sustainable Development: Cumulative Environmental Exposures and All-Cause Mortality in Colorado Counties

(1) Background: Colorado’s (CO) Environmental Justice mapping tool, CO EnviroScreen, quantifies environmental injustices through “EnviroScreen Scores”, highlighting areas likely affected by environmental health disparities. Identifying the specific scores most strongly associated with mortality could help prioritize interventions and allocate resources to address these issues. This study contributes to sustainable development goals by examining the relationship between environmental justice indicators and population health outcomes. By utilizing the CO EnviroScreen tool, we assess how cumulative environmental exposures and vulnerabilities impact mortality rates, providing insights for sustainable planning and public health policies. (2) Methods: We assessed the cross-sectional association between county-level all-cause mortality rates in CO, using 2019 data from the Colorado Department of Public Health and Environment, and three county-level component scores obtained from CO EnviroScreen: sensitive populations (i.e., health-related outcomes), environmental exposures (e.g., from air, water, noise), and climate vulnerability (i.e., risk of drought, flood, extreme heat, wildfire). A quasi-Poisson generalized linear model was utilized, incorporating covariates (county-level metrics for insufficient sleep, alcohol overconsumption, physical inactivity, and smoking) to explore associations adjusted for behavioral risk factors (n = 64 counties). (3) Results: The analysis revealed that a 10% increase in the “Environmental Exposures” component score was associated with a 3% higher all-cause mortality rate (95% CI: 1.00, 1.05), highlighting the importance of addressing environmental determinants for sustainable community health. No significant associations were observed for the “Sensitive Populations” or “Climate Vulnerability” component scores. (4) Conclusions: This study provides novel evidence of an association between the CO EnviroScreen score, particularly the environmental exposure component, and all-cause mortality rates at the county level in Colorado in 2019. The findings suggest that cumulative environmental exposures may contribute to geographic disparities in mortality risk, even after adjusting for key behavioral risk factors. These results underscore the importance of integrating environmental justice considerations into sustainable development strategies to promote equitable health outcomes and resilient communities. While our study demonstrates the utility of CO EnviroScreen in identifying areas at risk due to environmental factors, it does not establish a direct link to broader environmental justice outcomes. Further research is needed to explore specific environmental exposures and their direct impacts on health disparities to provide a more complete picture of environmental justice in Colorado.

Striving for Equity: Examining Health Disparities in Urologic Oncology

Health disparities in urologic oncology, particularly in prostate, bladder, kidney, and testicular cancers, significantly impact patient outcomes across different demographic groups. This narrative review aims to investigate the extent and drivers of these disparities, focusing on the influence of race, socioeconomic status, and geographic location on diagnosis, treatment, and survival outcomes. We conducted a comprehensive review of the existing literature and analyzed data from national cancer databases to identify patterns of inequity. Our findings reveal that minority populations, individuals with lower socioeconomic status, and those residing in underserved areas are less likely to receive timely and guideline-based care, leading to worse outcomes. This review underscores the urgent need for targeted interventions, including policy reforms, health system restructuring, enhanced community outreach, and increased funding for disparity-focused research, to ensure equitable access to high-quality oncologic care. Addressing these disparities is crucial for improving cancer outcomes and achieving health equity in urologic oncology.

Engaging Specific Populations with Tobacco-Related Health Disparities in Treatment Research: A summary of a SRNT Treatment Research Network Preconference Workshop.

Engaging Specific Populations with Tobacco-Related Health Disparities in Treatment Research: A summary of a SRNT Treatment Research Network Preconference Workshop.

Brain Health Outcomes in Sexual and Gender Minority Groups: Results From the All of Us Research Program.

Sexual and gender minority (SGM) groups have been historically underrepresented in neurologic research, and their brain health disparities are unknown. We aim to evaluate whether SGM persons are at higher risk of adverse brain health outcomes compared with cisgender straight (non-SGM) individuals. We conducted a cross-sectional study in the All of Us Research Program, a US population-based study, including all participants with information on gender identity and sexual orientation. We used baseline questionnaires to identify sexual minority (lesbian, gay, bisexual, diverse sexual orientation; nonstraight sexual orientation) and gender minority (gender diverse and transgender; gender identity different from sex assigned at birth) participants. The primary outcome was a composite of stroke, dementia, and late-life depression, assessed using electronic health record data and self-report. Secondarily, we evaluated each disease separately. Furthermore, we evaluated all subgroups of gender and sexual minorities stratified by sex assigned at birth. We used multivariable logistic regression (adjusted for age, sex assigned at birth, race/ethnicity, cardiovascular risk factors, other relevant comorbidities, and neighborhood deprivation index) to assess the relationship between SGM groups and the outcomes. Of 413,457 US adults enrolled between May 31, 2017, and June 30, 2022, we included 393,041 participants with available information on sexual orientation and gender identity (mean age 51 [SD 17] years), of whom 39,632 (10%) belonged to SGM groups. Of them, 38,528 (97%) belonged to a sexual minority and 4,431 (11%) to a gender minority. Compared with non-SGM, SGM persons had 15% higher odds of the brain health composite outcome (odds ratio [OR] 1.15, 95% CI 1.08-1.22). In secondary analyses, these results persisted across sexual and gender minorities separately (all 95% CIs > 1). Assessing individual diseases, all SGM groups had higher odds of dementia (SGM vs non-SGM: OR 1.14, 95% CI 1.00-1.29) and late-life depression (SGM vs non-SGM: OR 1.27, 95% CI 1.17-1.38) and transgender women had higher odds of stroke (OR 1.68, 95% CI 1.04-2.70). In a large US population study, SGM persons had higher odds of adverse brain health outcomes. Further research should explore structural causes of inequity to advance inclusive and diverse neurologic care.

Health Disparities and the Influence of Culturally Competent Care in Overall Health and Healthcare Utilization among Hispanics in a Southeastern US Community.

Introduction: This study sought to assess disparities in health/healthcare utilization for Hispanic immigrant community in Greenville County, SC. The study also assessed the role of culturally competent care perceptions on health/healthcare utilization within this growing community. Methods: Secondary administrative data collected by a large health care system in the county facilitated the assessment of health/healthcare utilization disparities using multivariate regression. Primary purposive surveys collected among Hispanic adults assessed culturally competent care perceptions and health/healthcare utilization. Culturally competent care measures included: (1) provider understanding, (2) provider communication behaviors, (3) provider assurance, and (4) interpreter service access. Results: Health disparities were present, with Hispanic residents having lower overall health and lower routine healthcare seeking behaviors compared to non-Hispanic White residents. Moreover, culturally competent care perceptions influenced overall health and healthcare-seeking behavior within this growing Hispanic community. Hispanic residents who perceived negative communication behaviors, lack of assurance, and increased interpretive service barriers reported lower overall health and lower routine healthcare seeking behaviors. Conclusions: Addressing potential cultural competency barriers may reduce health disparities among underrepresented racial/ethnic communities as they grow and become established in the Southeast, while also improving broader health equity for all communities.

Impacts of zero-fare transit policy on health and social determinants: protocol for a natural experiment study

Population-level efforts are needed to increase levels of physical activity and healthy eating to reduce and manage chronic diseases such as obesity, cardiovascular disease, and type 2 diabetes. Interventions to increase public transit use may be one promising strategy, particularly for low-income communities or populations of color who are disproportionately burdened by health disparities and transportation barriers. This study employs a natural experiment design to evaluate the impacts of a citywide zero-fare transit policy in Kansas City, Missouri, on ridership and health indicators. In Aim 1, comparison to 9 similar cities without zero-fare transit is used to examine differential changes in ridership from 3 years before to 4 years after the adoption of zero-fare. In Aim 2, Kansas City residents are being recruited from a large safety net health system to compare health indicators between zero-fare riders and non- riders. Longitudinal data on BMI, cardiometabolic markers, and economic barriers to health are collected from the electronic health record from 2017 to 2024. Cross-sectional data on healthy eating and device-measured physical activity are collected from a subsample of participants as part of the study procedures (N = 360). Numerous baseline characteristics are collected to account for differences between Kansas City and comparison city bus routes (Aim 1) and between zero-fare riders and non-riders within Kansas City (Aim 2). Evidence on how zero-fare transit shapes population health through mechanisms related to improved economic factors, transportation, physical activity, and healthy eating among low-income groups is expected.

Racial disparities in maternal blood transfusion in the United States by mode of delivery.

Despite well-documented racial disparities in maternal health in the United States, gaps remain in characterizing the distribution of these disparities in maternal blood transfusion. To assess racial disparities in maternal blood transfusion using detailed, self-identified racial groupings in the United States overall and stratified by mode of delivery. We performed a population-based, retrospective cohort study of full term, live births (2016-2021) using the National Vital Statistics System's Natality Files. Regression models were constructed to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) of maternal blood transfusion by self-identified maternal race in the total population, and among subgroups stratified by mode of delivery. Models were adjusted for maternal and obstetric practice factors. The study included 17,905,699 deliveries; maternal blood transfusion occurred in 3.4 per 1,000 deliveries. Compared with individuals who identified as White (3.3 per 1,000 transfusion rate), higher odds of transfusion were found among those who identified as American Indian and Alaska Native (AIAN; aOR 2.36, 95% CI 2.23-2.49), Black (aOR 1.15, 95% CI 1.12-1.17), Filipino (aOR 1.33, 95% CI 1.22-1.44), Korean (aOR 1.25, 95% CI 1.10-1.42), and Pacific Islander (aOR 1.63, 95% CI 1.45-1.83). The frequency of transfusion and racial disparities in transfusion varied substantially by mode of delivery. Lower rates of transfusion in Black vs White patients were observed in the spontaneous vaginal delivery (2.2 vs 2.3 per 1000; aOR 0.95, 95% CI 0.92-0.99), forceps (6.8 vs 8.9 per 1000; aOR 0.77, 95% CI 0.60-0.99), vacuum (4.2 vs 5.0 per 1000; aOR 0.85, 95% CI 0.74-0.97, and cesarean delivery with trial of labour (8.8 vs 8.9 per 1000; aOR 0.95, 95% CI 0.91-1.00) groups, while a higher rate was shown among cesarean deliveries without trial of labour (6.8 vs 4.3 per 1000; aOR 1.45, 95% CI 1.40-1.51). Racial disparities in maternal blood transfusion persist after adjustment for several confounders, particularly for AIAN and Pacific Islander individuals, and vary by mode of delivery.

Learning by Doing: The Potential for Experiential Education in Health Promotion

Background: Rural populations face significant health disparities (e.g., high rates of chronic diseases) and unique accessibility barriers (e.g., limited healthcare facilities). Training higher education students to serve as facilitators for chronic disease prevention programs may address rural health promotion needs. Purpose: The purpose of this pilot, exploratory study was to create an experiential learning opportunity for students and examine their experiences. Methodology/Approach: Project leaders completed a Diabetes Prevention Program Lifestyle Coach training and, based on their experiences, created training program goals, content, and schedule. Undergraduate students in health-related programs or courses were recruited to participate. Four students completed a 4-week experiential training program and, at the end of the program, participated in an individual qualitative interview for researchers to understand their experiences. Findings/Conclusions: Data were analyzed through a qualitative-descriptive approach. The main theme, experiential learning, branched into two subthemes: (a) professional development and (b) program implementation and future program directions. Students’ experiential learning influenced their personal and programmatic views of prevention training. Implications: The benefits of experiential learning in prevention will enhance students’ education and future employment experiences. Future studies should improve upon training delivery and examine the acceptability of this method of delivery in the rural population.