Background: Health insurance literacy (HIL) is defined as a person's ability to seek, obtain, and understand health insurance plans, and once enrolled use their insurance to seek appropriate health care services. Objective: The objectives of this study were to assess sociodemographic disparities in HIL, including knowledge of health insurance terms and costs, and confidence in using insurance to access health care in a nationally representative adult sample. Methods: We conducted a secondary data analysis of the Health Reform Monitoring Survey, which included 15,168 adults age 18 years and older who responded to surveys in the third quarter of 2015 and first quarter of 2016. Rao-Scott chi-square tests and weighted logistic regression were used for analysis. Key Results: The majority of our sample (51%) reported having inadequate HIL as measured by knowledge of basic insurance terms, and close to one-half (48%) had low confidence in using their insurance to access health care. Logistic regression analysis indicated significant disparities in HIL, with multiple groups identified as being at higher risk for having inadequate HIL (as measured by both knowledge and use of health insurance). These included young adults, women, those with Hispanic ethnicity, those who were not U.S. citizens, and those who were currently unmarried. Also identified to be at risk were those who are unemployed, uninsured, and enrolled in public health insurance plans, and those with lower levels of education and income. Most had inadequate knowledge of their annual out-of-pocket costs and insurance plan's deductible amounts. Conclusions: One-half of U.S. adults rate themselves as having inadequate HIL. Sociodemographic disparities in self-reported HIL underscore the need for increased consumer education, as well as efforts to simplify the health care system by promoting value-based care, supporting delivery system reforms, and designing services to be responsive to consumer HIL needs and abilities. [ HLRP: Health Literacy Research and Practice . 2019;3(4):e250–e258.] Plain Language Summary: In a nationally representative sample of 15,168 adults, the majority had low knowledge about basic health insurance terms and had difficulty using health insurance to access needed health care services. These findings indicate that health insurance literacy is a major concern in our community that disproportionately affects some underserved groups more than others, including young adults, groups with low-income, and people who are uninsured.

PURPOSE: This study examined the feasibility, acceptability, and preliminary effectiveness of an oncology financial navigation (OFN) intervention, Coverage and Cost-of-Care Links ( CC Links), among patients with hematologic cancer and their caregivers who are at increased risk of experiencing financial toxicity (FT). METHODS: All patients who presented to the Division of Hematology and Bone and Marrow Transplant (BMT) at an National Cancer Institute–designated cancer center between April 2021 and January 2022 were screened for FT during inpatient and outpatient visits. Patients who screened positive for FT and met the inclusion criteria were recruited to participate in CC Links that provided financial navigation and assistance via a financial navigator. Caregivers of patients undergoing BMTs were also recruited to participate. Primary outcomes were defined as improvements in FT, distress, and physical and mental quality of life. RESULTS: Fifty-four patients and 32 caregivers completed the intervention and pre-/postintervention surveys. CC Links resulted in statistically significant decreases in the Comprehensive Score for FT for both patients (| t| = 2.42, P = .019) and caregivers (| t| = 2.43, P = .021) and total FT (| t| = 2.13, P = .041) and material conditions scores (| t| = 2.25, P = .031) for caregivers only. Only 27% of eligible patients participated in the study, whereas 100% of eligible caregivers participated. The majority of participants rated the intervention highly for acceptability (89%) and appropriateness (88%). An average of $2,500 (USD) in financial benefits was secured per participant via CC Links. CONCLUSION: CC Links was effective in decreasing FT among patients with hematologic cancer and their caregivers while demonstrating high acceptability and appropriateness ratings.