Mental health disparities and the role of perceived discrimination among Latinx individuals living with Parkinson's disease.

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IntroductionParkinson's disease (PD) is a neurodegenerative disorder with motor and non-motor symptoms including depression and cognitive impairment. There is underrepresentation of Latinxs in PD research as most of the research consists of non-Latinx white participants. The current study investigates longitudinal differences in health disparities among Latinx and White non-Latinx individuals living with PD. As a second aim, we examined the associations between perceived discrimination in healthcare and outcomes from aim 1.MethodsThe present study consisted of 25,298 individuals with PD who enrolled in the Fox Insight (FI) online study. Participants were followed annually for up to 3 years. Participants completed measures of depressive symptoms, health-related quality of life (HRQOL), cognitive complaints, subjective motor symptom severity, self-reported income, and perceived discrimination in healthcare. Multilevel models examined the longitudinal differences in non-motor and motor outcomes among Latinx (n = 1161) and White non-Latinx individuals (n = 24,137).ResultsLatinx participants reported significantly more depressive symptoms and worse HRQOL than non-Latinx individuals. No significant differences were found in cognitive complaints, or motor severity between Latinx and non-Latinx participants. The main effect of perceived discrimination was associated with both depressive symptoms and HRQOL.ConclusionsThe current study provides initial evidence of mental health discrepancies among Latinx individuals living with PD and White non-Latinx counterparts. The combination of underrepresentation in research and possible health disparities among Latinx communities may affect the quality of clinical trials/studies and patient care.

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