Health inequities across the lung cancer care continuum in ten marginalized populations: a narrative review.

Background and Objective: Lung cancer remains the deadliest cancer in the United States. Although lung cancer screening and innovative treatment options are available, accessing these interventions remains a barrier for marginalized communities due to social and structural challenges that influence health care access, which has led to worse outcomes when compared to Non-Hispanic Whites (NHW) and non-marginalized populations. The objective of this study is to examine disparities in lung cancer and social/structural factors within ten critical populations (racial/ethnic minorities, low income, rural, LGBTQIA+, women, veteran and active duty, and small cell lung cancer) across the continuum of lung cancer care. Methods: Five databases (PubMed, the Cochrane Library, EMBASE, Web of Knowledge, and EBSCO Discovery Service) were queried from February 2022-June 2022. The inclusion criteria were (I) peer-reviewed academic journals published in English between the years 2000 and 2022; (II) research that focused on disparities across the lung cancer continuum; and (III) research articles addressing social and structural barriers to lung cancer health care access. A total of 95 articles and 24 reports were used for this narrative review. Key Content and Findings: Across the ten populations, consistent disparities were observed in lung cancer screening and treatment, exhibited by lower uptake in screening, treatment, clinical trials, and biomarker testing. Significant themes contributing to these disparities were socioeconomic status, transportation, language, historic trauma, provider bias or lack of cultural training, and lack of health care access, in part due to insurance coverage. Conclusions: Future studies are needed to further develop meaningful solutions to disparities in health outcomes and access for those who are at risk, diagnosed with, or surviving lung cancer from marginalized populations.