To further investigate the pattern of association at the LRRK2 locus and determine in a significantly larger data set whether rs76904798 is independently associated with PD from LRRK2 coding variation, we performed a conditional association analysis using individual‐level genotype data from 17,838 PD patients, 13,404 proxy patients (ie, individuals with a first‐degree relative who has PD but does not have PD themselves), and 173,639 healthy controls of European ancestry. The gene discussed is LRRK2; the disease is Parkinson disease.