Finally, GA heterozygotes of MUC2 rs11825977 had significantly reduced PD risk when comparing PPMI to controls in both naïve [OR = 0.727 (0.535–0.988), p = 0.042] and corrected regression models [OR = 0.727 (0.534–0.990), p = 0.043]. Here, MUC2 is linked to Parkinson disease.