Impact of Limited English Proficiency on Medication-Related Problems and Emergency Room Visits Among Community-Dwelling Older People.

Background Older people have higher risk of experiencing medication-related problems (MRPs), leading to increased morbidity, health care use, and mortality. Few studies have examined the pathway between limited English proficiency (LEP) among older people and health service use through MRPs. Objective This study aimed to explore the association of LEP among Latino older people with MRPs and their relationship to emergency room (ER) visits. Methods Researchers used secondary enrollment data from a community medication program for older people (N = 180). Researchers conducted linear regression to examine the relationship between ethnicity/English proficiency and MRPs, and logistic regression to explore the association between MRPs and ER visits. Generalized structural equation modeling (GSEM) with bootstrapping was used to test the indirect effect between LEP Latino through MRPs to ER visits. Results The sample included 70% non-Latino participants, 12% English-speaking Latinos, and 18% LEP Latinos. Analysis LEP Latinos were associated with having 3.4 more MRPs than non-Latino participants, after controlling for covariates. Additionally, each additional MRP was associated with a 10% increased probability of having an ER visit. The GSEM results illustrated there was a significant indirect effect between LEP through MRPs to ER visits (β = 0.27, 95% CI 0.07-0.61). Conclusion Though LEP was not directly related to increased ER visits, it may have inhibited the ability of Latinos to read and understand medication instructions, contributing to their elevated risk of experiencing MRPs, thus indirectly increasing potential risks of having ER visits.