PRKN and Parkinson disease: The 19 PRKN/PINK1-linked PD patients [9 females (47%)] had a median age at examination of 52 years (IQR of 47 to 59 years; range, 24 to 72 years), a median age of onset of 31 years (IQR of 23 to 37 years; range, 13 to 66 years), and a median disease duration of 16 years (IQR of 9.6 to 30.2; range, 4.0 to 48.3 years).