Abstract
BackgroundOptimal diagnosis and management of interstitial lung diseases (ILD) needs access to specialized centers, frequent monitoring, and complex therapeutic options. In underprivileged areas, these necessities can often lead to barriers in delivering care. Research QuestionWhat are the ILD mortality disparities in the regions along the United States-Mexico (US-MX) border? Study Design and MethodsWe obtained ILD mortality information through death certificate queries from the Centers for Disease Control and Prevention repository. Death data were adjusted for age and stratified by US-MX border regions and non-border regions in the US. Log-linear regression models were utilized to analyze mortality trends in the period from 1999 to 2020 followed by calculation of annual percentage changes (APC). Age-adjusted mortality rates (AAMR) were compared across cumulative and sub-demographic populations. ResultsILD-related mortality among border regions (AAMR 5.31) was higher compared to non-border regions (AAMR 4.86). Mortality within border regions remained unchanged from 1999 to 2020 (APC +0.3, p=0.269). Non-border regions experienced a significant rise in mortality rates (APC +2.6, p=0.017) from 1999 to 2005 and remained unchanged from 2005 to 2020. Mortality was higher within both men (AAMR 6.57) and women (AAMR 4.36) populations among border regions compared to their non-border counterparts (AAMR 6.27 and 3.87, respectively). Hispanic populations among the border regions experienced higher mortality rates (AAMR 6.15) compared to Hispanic populations within non-border regions (AAMR 5.44). Non-Hispanic populations encountered similar mortality rates between the two regions. Mortality rates among Hispanic (APC +0.0, p=0.938) and non-Hispanic (APC +0.2, p=0.531) populations in the border regions remained unchanged from 1999 to 2020. InterpretationThese results revealed ILD-related mortality disparities among the US-MX border regions, emphasizing the importance of public health measures to increase access to equitable medical care and implement targeted interventions among these vulnerable populations.
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