Developing a National-Scale Exposure Index for Combined Environmental Hazards and Social Stressors and Applications to the Environmental Influences on Child Health Outcomes (ECHO) Cohort.

Tools for assessing multiple exposures across several domains (e.g., physical, chemical, and social) are of growing importance in social and environmental epidemiology because of their value in uncovering disparities and their impact on health outcomes. Here we describe work done within the Environmental influences on Child Health Outcomes (ECHO)-wide Cohort Study to build a combined exposure index. Our index considered both environmental hazards and social stressors simultaneously with national coverage for a 10-year period. Our goal was to build this index and demonstrate its utility for assessing differences in exposure for pregnancies enrolled in the ECHO-wide Cohort Study. Our unitless combined exposure index, which collapses census-tract level data into a single relative measure of exposure ranging from 0-1 (where higher values indicate higher exposure to hazards), includes indicators for major air pollutants and air toxics, features of the built environment, traffic exposures, and social determinants of health (e.g., lower educational attainment) drawn from existing data sources. We observed temporal and geographic variations in index values, with exposures being highest among participants living in the West and Northeast regions. Pregnant people who identified as Black or Hispanic (of any race) were at higher risk of living in a "high" exposure census tract (defined as an index value above 0.5) relative to those who identified as White or non-Hispanic. Index values were also higher for pregnant people with lower educational attainment. Several recommendations follow from our work, including that environmental and social stressor datasets with higher spatial and temporal resolutions are needed to ensure index-based tools fully capture the total environmental context.

Strategies for culturally safe research with Native American communities: an integrative review.

Background: A history of unethical research and deficit-based paradigms have contributed to profound mistrust of research among Native Americans, serving as an important call to action. Lack of cultural safety in research with Native Americans limits integration of cultural and contextual knowledge that is valuable for understanding challenges and making progress toward sustainable change. Aim: To identify strategies for promoting cultural safety, accountability, and sustainability in research with Native American communities. Method: Using an integrative review approach, three distinct processes were carried out: (1) appraisal of peer-reviewed literature (Scopus, PubMed, and ProQuest), (2) review of grey literature (e.g. policy documents and guidelines), and (3) synthesis of recommendations for promoting cultural safety. Results: A total of 378 articles were screened for inclusion, with 55 peer-reviewed and grey literature articles extracted for full review. Recommendations from included articles were synthesised into strategies aligned with eight thematic areas for improving cultural safety in research with Native American communities. Conclusions: Research aiming to understand, respect, and acknowledge tribal sovereignty, address historical trauma, and endorse Indigenous methods is essential. Culturally appropriate, community-based and -engaged research collaborations with Native American communities can signal a reparative effort, re-establish trust, and inform pragmatic solutions. Rigorous research led by Native American people is critical to address common and complex health challenges faced by Native American communities. Impact statement: Respect and rigorous methods ensure cultural safety, accountability, and sustainability in research with Native Americans.

Tribal IRBs: A Framework for Understanding Research Oversight in American Indian and Alaska Native Communities.

Tribal Institutional Review Boards (IRBs) and other entities that oversee research for American Indians and Alaska Natives are important and unique. They reflect and respond to community needs, changes in research, and revisions to research policy. We provide a framework to capture this dynamism by building on existing work and offering a way to describe the scope of entities that oversee tribal research. As federal research regulations are revised, and policies are developed in response to a rapidly advancing research landscape, it is critical that policy makers, IRB professionals, researchers, and tribal communities have clarity regarding the Tribal IRB.