Socioeconomic and occupational groups and Parkinson's disease : a nationwide study based on hospitalizations in Sweden
OBJECTIVES: The aim of this study was to investigate whether there is an association between socioeconomic status, occupation and hospitalization for Parkinson's disease (PD).METHODS: A nationwide database was constructed by linking the Swedish Census to the Hospital Discharge Register to obtain data on all first adult hospitalizations for PD diagnosed in Sweden during the study period from 1987 t