MYORG and Parkinson disease: Constipation was reported in 32% of the cohort, with higher frequency in patients with motor symptoms (44% vs. 6.25%, p < 0.001), especially in those with parkinsonism or cognitive decline (p = 0.01) and in MYORG mutation carriers compared to other sub-groups, but no statistically significant differences could be detected in association with other specific symptoms or genetic etiology.