The meta-analysis, which included a total of 20,809 PD cases and 88,892 controls from Europe and North America (Table S2), revealed a significant association for TMPRSS6 rs855791 with PD risk, with an OR of 0.97 (95% CI 0.94–0.99; p = 0.034) per copy of the G allele. Here, TMPRSS6 is linked to Parkinson disease.