Our analysis in a subset of 386 PD cases and 722 controls of European ancestry show that carrying uninterrupted FGF14 GAA expansions of ≥300 repeats is associated with PD (Fisher’s exact test; p = 0.022), while having ≥250 repeats is not associated with disease risk (Fisher’s exact test; p = 0.31). The gene discussed is FGF14; the disease is Parkinson disease.