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Parkinson’s disease (PD) research has historically been under-represented in diverse populations, limiting generalisability and contributing to inequalities in healthcare access. 1–4 Structural and cultural barriers, including language, health literacy, mistrust of research and practical constraints, continue to reduce engagement among diverse communities.5 6 This is particularly important as emerging evidence suggests that prevalence, symptom presentation and treatment experiences of PD may vary across ethnic groups.7 8 However, these differences are likely shaped by a complex interplay of biological, social-lifestyle, psychological, environmental and healthcare-related factors, which remain poorly characterised due to limited representative participation.