LRRK2 and Parkinson disease: Compared to IPD, LRRK2-PD patients reported more frequently sleep onset insomnia (p = 0.005), had greater (worse) PSQI score (p = 0.033) and PSQI ≥6 (p = 0.025), more benzodiazepines usage (p = 0.003) and lower UPDRS-III score (p = 0.022).