caption: <PERSON> plots of cumulative incidence of Parkinson's disease in subgroups with different age at participation, 39--49 years (A), 49--59 year (B), 59--69 years (C) and 69--100 years (<PERSON>). HR represents hazard ratios from an unadjusted cox regression. HR represents hazard ratios from an unadjusted cox regression.
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