Importance Early features of Parkinson disease (PD) have been described through population-based studies that overrepresent White, affluent groups and may not be generalizable. Objective To investigate the association between risk factors and prediagnostic presentations of PD in an ethnically diverse UK population with high socioeconomic deprivation but universal access to health care. Design, Setting, and… Continue reading Assessment of Risk Factors and Early Presentations of Parkinson Disease in Primary Care in a Diverse UK Population