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Citizenship status and cost-related nonadherence in the United States, 2017-2021.
Health Services Research 2023 May 32
OBJECTIVE: To assess inequities in prescription medication use and subsequent cost-related nonadherence (CRN) and cost-saving strategies by citizenship status in the United States.
DATA SOURCES/STUDY SETTING: National Health Interview Survey (2017-2021).
STUDY DESIGN: This cross-sectional study examined noncitizen (n = 8596), naturalized citizen (n = 12,800), and US-born citizen (n = 120,195) adults. We also examined older adults (≥65 years) separately, including noncitizens without Medicare (a group of importance given their immigration-related barriers to health care access). Multiple mediation analysis was used to examine differences in CRN and determine whether economic, health care, and immigration factors explain observed inequities.
PRINCIPAL FINDINGS: Noncitizens (41.9%) were less likely to use prescription medications than naturalized (60.5%) and US-born citizens (68.2%). Among prescription medication users, noncitizens (13.8%) were more likely to report CRN than naturalized (9.5%) and US-born citizens (11.0%). CRN differences between noncitizens and naturalized citizens (OR 1.38, 95% CI 1.21-1.44) and between noncitizens and US-born citizens (OR 1.23, 95% CI 1.07-1.35) were explained by insurance status and food insecurity. Only 4.9% of medication users turned to alternative therapies to lower their drug costs, but there were no substantial differences across citizenship status. More medication users requested lower-cost prescriptions (19.0%); however, noncitizens were less likely to make these requests. Older noncitizens without Medicare, of whom 23.9% requested lower-cost drugs, were an exception. Noncitizens (5.8%), particularly older noncitizens without Medicare (21.8%), were more likely to import their drugs than naturalized (3.5%) and US-born citizens (1.2%).
CONCLUSIONS: Noncitizens experience a high burden of cost-related barriers to prescription medications. Efforts to reduce these inequities should focus on dismantling health care and food access barriers, regardless of citizenship status.
DATA SOURCES/STUDY SETTING: National Health Interview Survey (2017-2021).
STUDY DESIGN: This cross-sectional study examined noncitizen (n = 8596), naturalized citizen (n = 12,800), and US-born citizen (n = 120,195) adults. We also examined older adults (≥65 years) separately, including noncitizens without Medicare (a group of importance given their immigration-related barriers to health care access). Multiple mediation analysis was used to examine differences in CRN and determine whether economic, health care, and immigration factors explain observed inequities.
PRINCIPAL FINDINGS: Noncitizens (41.9%) were less likely to use prescription medications than naturalized (60.5%) and US-born citizens (68.2%). Among prescription medication users, noncitizens (13.8%) were more likely to report CRN than naturalized (9.5%) and US-born citizens (11.0%). CRN differences between noncitizens and naturalized citizens (OR 1.38, 95% CI 1.21-1.44) and between noncitizens and US-born citizens (OR 1.23, 95% CI 1.07-1.35) were explained by insurance status and food insecurity. Only 4.9% of medication users turned to alternative therapies to lower their drug costs, but there were no substantial differences across citizenship status. More medication users requested lower-cost prescriptions (19.0%); however, noncitizens were less likely to make these requests. Older noncitizens without Medicare, of whom 23.9% requested lower-cost drugs, were an exception. Noncitizens (5.8%), particularly older noncitizens without Medicare (21.8%), were more likely to import their drugs than naturalized (3.5%) and US-born citizens (1.2%).
CONCLUSIONS: Noncitizens experience a high burden of cost-related barriers to prescription medications. Efforts to reduce these inequities should focus on dismantling health care and food access barriers, regardless of citizenship status.
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